octave: liboctave/numeric/eigs-base.cc annotate

annotate liboctave/numeric/eigs-base.cc @ 21149:7962dbca527f

eliminate obsolete CXX_NEW_FRIEND_TEMPLATE_DECL macro * acinclude.m4 (OCTAVE_CXX_NEW_FRIEND_TEMPLATE_DECL): Delete macro definition. * configure.ac: Don't use it. * filter.cc, eigs-base.cc, sparse-dmsolve.cc: Eliminate use of CXX_NEW_FRIEND_TEMPLATE_DECL macro since this feature should be present in all modern C++ compilers.

author	John W. Eaton <jwe@octave.org>
date	Fri, 29 Jan 2016 12:23:09 -0500
parents	ea9c05014809
children	342764537e5a

rev	line source
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1 /*
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2
19697 4197fc428c7d maint: Update copyright notices for 2015. John W. Eaton <jwe@octave.org> parents: 19410 diff changeset	3 Copyright (C) 2005-2015 David Bateman
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	4
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	5 This file is part of Octave.
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	6
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	7 Octave is free software; you can redistribute it and/or modify it
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	8 under the terms of the GNU General Public License as published by the
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	9 Free Software Foundation; either version 3 of the License, or (at your
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	10 option) any later version.
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	11
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	12 Octave is distributed in the hope that it will be useful, but WITHOUT
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	15 for more details.
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	16
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	17 You should have received a copy of the GNU General Public License
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	18 along with Octave; see the file COPYING. If not, see
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	19 <http://www.gnu.org/licenses/>.
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	20
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	21 */
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	22
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	23 #ifdef HAVE_CONFIG_H
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	24 #include <config.h>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	25 #endif
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	26
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	27 #include <cfloat>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	28 #include <cmath>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	29 #include <vector>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	30 #include <iostream>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	31
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	32 #include "f77-fcn.h"
19269 65554f5847ac don't include oct-locbuf.h in header files unnecessarily John W. Eaton <jwe@octave.org> parents: 17769 diff changeset	33 #include "oct-locbuf.h"
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	34 #include "quit.h"
21146 ea9c05014809 revamp sparse LU factorization classes John W. Eaton <jwe@octave.org> parents: 21145 diff changeset	35 #include "sparse-lu.h"
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	36 #include "dSparse.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	37 #include "CSparse.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	38 #include "MatrixType.h"
21145 307096fb67e1 revamp sparse Cholesky factorization classes John W. Eaton <jwe@octave.org> parents: 21139 diff changeset	39 #include "sparse-chol.h"
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	40 #include "oct-rand.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	41 #include "dbleCHOL.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	42 #include "CmplxCHOL.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	43 #include "dbleLU.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	44 #include "CmplxLU.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	45
14144 834df9f10963 remove ARPACK files from sources and restore configure checks for external ARPACK library John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	46 #ifdef HAVE_ARPACK
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	47 typedef ColumnVector (*EigsFunc) (const ColumnVector &x, int &eigs_error);
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	48 typedef ComplexColumnVector (*EigsComplexFunc)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	49 (const ComplexColumnVector &x, int &eigs_error);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	50
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	51 // Arpack and blas fortran functions we call.
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	52 extern "C"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	53 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	54 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	55 F77_FUNC (dsaupd, DSAUPD) (octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	56 F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	57 const octave_idx_type&,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	58 F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	59 const octave_idx_type&, const double&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	60 double, const octave_idx_type&, double,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	61 const octave_idx_type&, octave_idx_type*,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	62 octave_idx_type, double, double*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	63 const octave_idx_type&, octave_idx_type&
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	64 F77_CHAR_ARG_LEN_DECL
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	65 F77_CHAR_ARG_LEN_DECL);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	66
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	67 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	68 F77_FUNC (dseupd, DSEUPD) (const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	69 F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	70 octave_idx_type, double, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	71 const octave_idx_type&, const double&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	72 F77_CONST_CHAR_ARG_DECL,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	73 const octave_idx_type&,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	74 F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	75 const octave_idx_type&, const double&, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	76 const octave_idx_type&, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	77 const octave_idx_type&, octave_idx_type*,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	78 octave_idx_type, double, double*,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	79 const octave_idx_type&, octave_idx_type&
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	80 F77_CHAR_ARG_LEN_DECL
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	81 F77_CHAR_ARG_LEN_DECL
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	82 F77_CHAR_ARG_LEN_DECL);
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	83
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	84 F77_RET_T
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	85 F77_FUNC (dnaupd, DNAUPD) (octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	86 F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	87 const octave_idx_type&,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	88 F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	89 octave_idx_type&, const double&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	90 double, const octave_idx_type&, double,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	91 const octave_idx_type&, octave_idx_type*,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	92 octave_idx_type, double, double*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	93 const octave_idx_type&, octave_idx_type&
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	94 F77_CHAR_ARG_LEN_DECL
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	95 F77_CHAR_ARG_LEN_DECL);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	96
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	97 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	98 F77_FUNC (dneupd, DNEUPD) (const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	99 F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	100 octave_idx_type, double, double*,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	101 double*, const octave_idx_type&, const double&,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	102 const double&, double*,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	103 F77_CONST_CHAR_ARG_DECL,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	104 const octave_idx_type&,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	105 F77_CONST_CHAR_ARG_DECL,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	106 octave_idx_type&, const double&, double*,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	107 const octave_idx_type&, double*,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	108 const octave_idx_type&, octave_idx_type*,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	109 octave_idx_type, double, double*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	110 const octave_idx_type&, octave_idx_type&
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	111 F77_CHAR_ARG_LEN_DECL
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	112 F77_CHAR_ARG_LEN_DECL
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	113 F77_CHAR_ARG_LEN_DECL);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	114
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	115 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	116 F77_FUNC (znaupd, ZNAUPD) (octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	117 F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	118 const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	119 F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	120 const octave_idx_type&, const double&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	121 Complex, const octave_idx_type&, Complex,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	122 const octave_idx_type&, octave_idx_type*,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	123 octave_idx_type, Complex, Complex*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	124 const octave_idx_type&, double *, octave_idx_type&
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	125 F77_CHAR_ARG_LEN_DECL
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	126 F77_CHAR_ARG_LEN_DECL);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	127
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	128 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	129 F77_FUNC (zneupd, ZNEUPD) (const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	130 F77_CONST_CHAR_ARG_DECL,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	131 octave_idx_type, Complex, Complex*,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	132 const octave_idx_type&, const Complex&, Complex*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	133 F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	134 const octave_idx_type&,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	135 F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	136 const octave_idx_type&, const double&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	137 Complex, const octave_idx_type&, Complex,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	138 const octave_idx_type&, octave_idx_type*,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	139 octave_idx_type, Complex, Complex*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	140 const octave_idx_type&, double *, octave_idx_type&
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	141 F77_CHAR_ARG_LEN_DECL
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	142 F77_CHAR_ARG_LEN_DECL
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	143 F77_CHAR_ARG_LEN_DECL);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	144
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	145 F77_RET_T
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	146 F77_FUNC (dgemv, DGEMV) (F77_CONST_CHAR_ARG_DECL,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	147 const octave_idx_type&, const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	148 const double&, const double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	149 const octave_idx_type&, const double*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	150 const octave_idx_type&, const double&, double*,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	151 const octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	152 F77_CHAR_ARG_LEN_DECL);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	153
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	154
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	155 F77_RET_T
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	156 F77_FUNC (zgemv, ZGEMV) (F77_CONST_CHAR_ARG_DECL,
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	157 const octave_idx_type&, const octave_idx_type&,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	158 const Complex&, const Complex*,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	159 const octave_idx_type&, const Complex*,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	160 const octave_idx_type&, const Complex&, Complex*,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	161 const octave_idx_type&
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	162 F77_CHAR_ARG_LEN_DECL);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	163
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	164 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	165
19410 95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	166 static void
95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	167 warn_convergence (void)
95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	168 {
95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	169 (*current_liboctave_warning_with_id_handler)
95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	170 ("Octave:convergence",
95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	171 "eigs: 'A - sigma*B' is singular, indicating sigma is exactly "
95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	172 "an eigenvalue so convergence is not guaranteed");
95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	173 }
95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	174
21139 538b57866b90 consistently use "typename" intead of "class" in template declarations John W. Eaton <jwe@octave.org> parents: 21136 diff changeset	175 template <typename M, typename SM>
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	176 static octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	177 lusolve (const SM& L, const SM& U, M& m)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	178 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	179 octave_idx_type err = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	180 double rcond;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	181 MatrixType utyp (MatrixType::Upper);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	182
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	183 // Sparse L is lower triangular, Dense L is permuted lower triangular!!!
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	184 m = L.solve (m, err, rcond, 0);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	185 if (err)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	186 return err;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	187
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	188 m = U.solve (utyp, m, err, rcond, 0);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	189
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	190 return err;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	191 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	192
21139 538b57866b90 consistently use "typename" intead of "class" in template declarations John W. Eaton <jwe@octave.org> parents: 21136 diff changeset	193 template <typename SM, typename M>
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	194 static M
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	195 ltsolve (const SM& L, const ColumnVector& Q, const M& m)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	196 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	197 octave_idx_type n = L.cols ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	198 octave_idx_type b_nc = m.cols ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	199 octave_idx_type err = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	200 double rcond;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	201 MatrixType ltyp (MatrixType::Lower);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	202 M tmp = L.solve (ltyp, m, err, rcond, 0);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	203 M retval;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	204 const double* qv = Q.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	205
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	206 if (! err)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	207 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	208 retval.resize (n, b_nc);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	209 for (octave_idx_type j = 0; j < b_nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	210 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	211 for (octave_idx_type i = 0; i < n; i++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	212 retval.elem (static_cast<octave_idx_type>(qv[i]), j) =
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	213 tmp.elem (i,j);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	214 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	215 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	216
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	217 return retval;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	218 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	219
21139 538b57866b90 consistently use "typename" intead of "class" in template declarations John W. Eaton <jwe@octave.org> parents: 21136 diff changeset	220 template <typename SM, typename M>
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	221 static M
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	222 utsolve (const SM& U, const ColumnVector& Q, const M& m)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	223 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	224 octave_idx_type n = U.cols ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	225 octave_idx_type b_nc = m.cols ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	226 octave_idx_type err = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	227 double rcond;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	228 MatrixType utyp (MatrixType::Upper);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	229
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	230 M retval (n, b_nc);
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	231 const double* qv = Q.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	232 for (octave_idx_type j = 0; j < b_nc; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	233 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	234 for (octave_idx_type i = 0; i < n; i++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	235 retval.elem (i,j) = m.elem (static_cast<octave_idx_type>(qv[i]), j);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	236 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	237 return U.solve (utyp, retval, err, rcond, 0);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	238 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	239
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	240 static bool
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	241 vector_product (const SparseMatrix& m, const double* x, double* y)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	242 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	243 octave_idx_type nc = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	244
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	245 for (octave_idx_type j = 0; j < nc; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	246 y[j] = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	247
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	248 for (octave_idx_type j = 0; j < nc; j++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	249 for (octave_idx_type i = m.cidx (j); i < m.cidx (j+1); i++)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	250 y[m.ridx (i)] += m.data (i) * x[j];
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	251
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	252 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	253 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	254
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	255 static bool
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	256 vector_product (const Matrix& m, const double x, double y)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	257 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	258 octave_idx_type nr = m.rows ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	259 octave_idx_type nc = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	260
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	261 F77_XFCN (dgemv, DGEMV, (F77_CONST_CHAR_ARG2 ("N", 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	262 nr, nc, 1.0, m.data (), nr,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	263 x, 1, 0.0, y, 1
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	264 F77_CHAR_ARG_LEN (1)));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	265
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	266 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	267 (*current_liboctave_error_handler) ("eigs: unrecoverable error in dgemv");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	268
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	269 return true;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	270 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	271
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	272 static bool
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	273 vector_product (const SparseComplexMatrix& m, const Complex* x,
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	274 Complex* y)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	275 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	276 octave_idx_type nc = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	277
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	278 for (octave_idx_type j = 0; j < nc; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	279 y[j] = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	280
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	281 for (octave_idx_type j = 0; j < nc; j++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	282 for (octave_idx_type i = m.cidx (j); i < m.cidx (j+1); i++)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	283 y[m.ridx (i)] += m.data (i) * x[j];
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	284
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	285 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	286 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	287
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	288 static bool
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	289 vector_product (const ComplexMatrix& m, const Complex x, Complex y)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	290 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	291 octave_idx_type nr = m.rows ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	292 octave_idx_type nc = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	293
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	294 F77_XFCN (zgemv, ZGEMV, (F77_CONST_CHAR_ARG2 ("N", 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	295 nr, nc, 1.0, m.data (), nr,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	296 x, 1, 0.0, y, 1
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	297 F77_CHAR_ARG_LEN (1)));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	298
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	299 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	300 (*current_liboctave_error_handler) ("eigs: unrecoverable error in zgemv");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	301
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	302 return true;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	303 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	304
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	305 static bool
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	306 make_cholb (Matrix& b, Matrix& bt, ColumnVector& permB)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	307 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	308 octave_idx_type info;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	309 CHOL fact (b, info);
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	310 octave_idx_type n = b.cols ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	311
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	312 if (info != 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	313 return false;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	314 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	315 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	316 bt = fact.chol_matrix ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	317 b = bt.transpose ();
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	318 permB = ColumnVector (n);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	319 for (octave_idx_type i = 0; i < n; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	320 permB(i) = i;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	321 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	322 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	323 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	324
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	325 static bool
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	326 make_cholb (SparseMatrix& b, SparseMatrix& bt, ColumnVector& permB)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	327 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	328 octave_idx_type info;
21145 307096fb67e1 revamp sparse Cholesky factorization classes John W. Eaton <jwe@octave.org> parents: 21139 diff changeset	329 sparse_chol<SparseMatrix> fact (b, info, false);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	330
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	331 if (fact.P () != 0)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	332 return false;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	333 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	334 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	335 b = fact.L ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	336 bt = b.transpose ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	337 permB = fact.perm () - 1.0;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	338 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	339 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	340 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	341
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	342 static bool
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	343 make_cholb (ComplexMatrix& b, ComplexMatrix& bt, ColumnVector& permB)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	344 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	345 octave_idx_type info;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	346 ComplexCHOL fact (b, info);
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	347 octave_idx_type n = b.cols ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	348
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	349 if (info != 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	350 return false;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	351 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	352 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	353 bt = fact.chol_matrix ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	354 b = bt.hermitian ();
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	355 permB = ColumnVector (n);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	356 for (octave_idx_type i = 0; i < n; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	357 permB(i) = i;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	358 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	359 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	360 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	361
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	362 static bool
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	363 make_cholb (SparseComplexMatrix& b, SparseComplexMatrix& bt,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	364 ColumnVector& permB)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	365 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	366 octave_idx_type info;
21145 307096fb67e1 revamp sparse Cholesky factorization classes John W. Eaton <jwe@octave.org> parents: 21139 diff changeset	367 sparse_chol<SparseComplexMatrix> fact (b, info, false);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	368
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	369 if (fact.P () != 0)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	370 return false;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	371 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	372 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	373 b = fact.L ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	374 bt = b.hermitian ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	375 permB = fact.perm () - 1.0;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	376 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	377 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	378 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	379
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	380 static bool
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	381 LuAminusSigmaB (const SparseMatrix &m, const SparseMatrix &b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	382 bool cholB, const ColumnVector& permB, double sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	383 SparseMatrix &L, SparseMatrix &U, octave_idx_type *P,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	384 octave_idx_type *Q)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	385 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	386 bool have_b = ! b.is_empty ();
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	387 octave_idx_type n = m.rows ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	388
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	389 // Caclulate LU decomposition of 'A - sigma * B'
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	390 SparseMatrix AminusSigmaB (m);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	391
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	392 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	393 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	394 if (cholB)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	395 {
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	396 if (permB.numel ())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	397 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	398 SparseMatrix tmp(n,n,n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	399 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	400 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	401 tmp.xcidx (i) = i;
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	402 tmp.xridx (i) =
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	403 static_cast<octave_idx_type>(permB(i));
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	404 tmp.xdata (i) = 1;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	405 }
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	406 tmp.xcidx (n) = n;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	407
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	408 AminusSigmaB -= sigma * tmp *
e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	409 b.transpose () * b * tmp.transpose ();
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	410 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	411 else
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	412 AminusSigmaB -= sigma * b.transpose () * b;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	413 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	414 else
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	415 AminusSigmaB -= sigma * b;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	416 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	417 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	418 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	419 SparseMatrix sigmat (n, n, n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	420
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	421 // Create sigma * speye (n,n)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	422 sigmat.xcidx (0) = 0;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	423 for (octave_idx_type i = 0; i < n; i++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	424 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	425 sigmat.xdata (i) = sigma;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	426 sigmat.xridx (i) = i;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	427 sigmat.xcidx (i+1) = i + 1;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	428 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	429
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	430 AminusSigmaB -= sigmat;
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	431 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	432
21146 ea9c05014809 revamp sparse LU factorization classes John W. Eaton <jwe@octave.org> parents: 21145 diff changeset	433 sparse_lu<SparseMatrix> fact (AminusSigmaB);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	434
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	435 L = fact.L ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	436 U = fact.U ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	437 const octave_idx_type *P2 = fact.row_perm ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	438 const octave_idx_type *Q2 = fact.col_perm ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	439
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	440 for (octave_idx_type j = 0; j < n; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	441 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	442 P[j] = P2[j];
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	443 Q[j] = Q2[j];
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	444 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	445
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	446 // Test condition number of LU decomposition
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	447 double minU = octave_NaN;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	448 double maxU = octave_NaN;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	449 for (octave_idx_type j = 0; j < n; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	450 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	451 double d = 0.;
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	452 if (U.xcidx (j+1) > U.xcidx (j)
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	453 && U.xridx (U.xcidx (j+1)-1) == j)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	454 d = std::abs (U.xdata (U.xcidx (j+1)-1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	455
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	456 if (xisnan (minU) \|\| d < minU)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	457 minU = d;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	458
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	459 if (xisnan (maxU) \|\| d > maxU)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	460 maxU = d;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	461 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	462
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	463 double rcond = (minU / maxU);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	464 volatile double rcond_plus_one = rcond + 1.0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	465
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	466 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
19410 95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	467 warn_convergence ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	468
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	469 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	470 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	471
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	472 static bool
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	473 LuAminusSigmaB (const Matrix &m, const Matrix &b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	474 bool cholB, const ColumnVector& permB, double sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	475 Matrix &L, Matrix &U, octave_idx_type *P,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	476 octave_idx_type *Q)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	477 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	478 bool have_b = ! b.is_empty ();
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	479 octave_idx_type n = m.cols ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	480
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	481 // Caclulate LU decomposition of 'A - sigma * B'
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	482 Matrix AminusSigmaB (m);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	483
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	484 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	485 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	486 if (cholB)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	487 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	488 Matrix tmp = sigma * b.transpose () * b;
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	489 const double *pB = permB.fortran_vec ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	490 double *p = AminusSigmaB.fortran_vec ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	491
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	492 if (permB.numel ())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	493 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	494 for (octave_idx_type j = 0;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	495 j < b.cols (); j++)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	496 for (octave_idx_type i = 0;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	497 i < b.rows (); i++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	498 *p++ -= tmp.xelem (static_cast<octave_idx_type>(pB[i]),
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	499 static_cast<octave_idx_type>(pB[j]));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	500 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	501 else
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	502 AminusSigmaB -= tmp;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	503 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	504 else
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	505 AminusSigmaB -= sigma * b;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	506 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	507 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	508 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	509 double *p = AminusSigmaB.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	510
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	511 for (octave_idx_type i = 0; i < n; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	512 p[i*(n+1)] -= sigma;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	513 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	514
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	515 LU fact (AminusSigmaB);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	516
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	517 L = fact.P ().transpose () * fact.L ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	518 U = fact.U ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	519 for (octave_idx_type j = 0; j < n; j++)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	520 P[j] = Q[j] = j;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	521
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	522 // Test condition number of LU decomposition
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	523 double minU = octave_NaN;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	524 double maxU = octave_NaN;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	525 for (octave_idx_type j = 0; j < n; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	526 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	527 double d = std::abs (U.xelem (j,j));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	528 if (xisnan (minU) \|\| d < minU)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	529 minU = d;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	530
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	531 if (xisnan (maxU) \|\| d > maxU)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	532 maxU = d;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	533 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	534
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	535 double rcond = (minU / maxU);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	536 volatile double rcond_plus_one = rcond + 1.0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	537
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	538 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
19410 95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	539 warn_convergence ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	540
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	541 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	542 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	543
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	544 static bool
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	545 LuAminusSigmaB (const SparseComplexMatrix &m, const SparseComplexMatrix &b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	546 bool cholB, const ColumnVector& permB, Complex sigma,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	547 SparseComplexMatrix &L, SparseComplexMatrix &U,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	548 octave_idx_type P, octave_idx_type Q)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	549 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	550 bool have_b = ! b.is_empty ();
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	551 octave_idx_type n = m.rows ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	552
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	553 // Caclulate LU decomposition of 'A - sigma * B'
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	554 SparseComplexMatrix AminusSigmaB (m);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	555
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	556 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	557 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	558 if (cholB)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	559 {
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	560 if (permB.numel ())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	561 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	562 SparseMatrix tmp(n,n,n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	563 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	564 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	565 tmp.xcidx (i) = i;
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	566 tmp.xridx (i) =
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	567 static_cast<octave_idx_type>(permB(i));
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	568 tmp.xdata (i) = 1;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	569 }
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	570 tmp.xcidx (n) = n;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	571
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	572 AminusSigmaB -= tmp * b.hermitian () * b *
e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	573 tmp.transpose () * sigma;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	574 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	575 else
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	576 AminusSigmaB -= sigma * b.hermitian () * b;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	577 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	578 else
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	579 AminusSigmaB -= sigma * b;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	580 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	581 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	582 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	583 SparseComplexMatrix sigmat (n, n, n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	584
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	585 // Create sigma * speye (n,n)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	586 sigmat.xcidx (0) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	587 for (octave_idx_type i = 0; i < n; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	588 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	589 sigmat.xdata (i) = sigma;
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	590 sigmat.xridx (i) = i;
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	591 sigmat.xcidx (i+1) = i + 1;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	592 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	593
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	594 AminusSigmaB -= sigmat;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	595 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	596
21146 ea9c05014809 revamp sparse LU factorization classes John W. Eaton <jwe@octave.org> parents: 21145 diff changeset	597 sparse_lu<SparseComplexMatrix> fact (AminusSigmaB);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	598
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	599 L = fact.L ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	600 U = fact.U ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	601 const octave_idx_type *P2 = fact.row_perm ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	602 const octave_idx_type *Q2 = fact.col_perm ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	603
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	604 for (octave_idx_type j = 0; j < n; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	605 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	606 P[j] = P2[j];
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	607 Q[j] = Q2[j];
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	608 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	609
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	610 // Test condition number of LU decomposition
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	611 double minU = octave_NaN;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	612 double maxU = octave_NaN;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	613 for (octave_idx_type j = 0; j < n; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	614 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	615 double d = 0.;
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	616 if (U.xcidx (j+1) > U.xcidx (j)
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	617 && U.xridx (U.xcidx (j+1)-1) == j)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	618 d = std::abs (U.xdata (U.xcidx (j+1)-1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	619
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	620 if (xisnan (minU) \|\| d < minU)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	621 minU = d;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	622
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	623 if (xisnan (maxU) \|\| d > maxU)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	624 maxU = d;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	625 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	626
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	627 double rcond = (minU / maxU);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	628 volatile double rcond_plus_one = rcond + 1.0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	629
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	630 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
19410 95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	631 warn_convergence ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	632
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	633 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	634 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	635
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	636 static bool
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	637 LuAminusSigmaB (const ComplexMatrix &m, const ComplexMatrix &b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	638 bool cholB, const ColumnVector& permB, Complex sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	639 ComplexMatrix &L, ComplexMatrix &U, octave_idx_type *P,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	640 octave_idx_type *Q)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	641 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	642 bool have_b = ! b.is_empty ();
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	643 octave_idx_type n = m.cols ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	644
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	645 // Caclulate LU decomposition of 'A - sigma * B'
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	646 ComplexMatrix AminusSigmaB (m);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	647
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	648 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	649 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	650 if (cholB)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	651 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	652 ComplexMatrix tmp = sigma * b.hermitian () * b;
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	653 const double *pB = permB.fortran_vec ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	654 Complex *p = AminusSigmaB.fortran_vec ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	655
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	656 if (permB.numel ())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	657 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	658 for (octave_idx_type j = 0;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	659 j < b.cols (); j++)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	660 for (octave_idx_type i = 0;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	661 i < b.rows (); i++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	662 *p++ -= tmp.xelem (static_cast<octave_idx_type>(pB[i]),
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	663 static_cast<octave_idx_type>(pB[j]));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	664 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	665 else
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	666 AminusSigmaB -= tmp;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	667 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	668 else
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	669 AminusSigmaB -= sigma * b;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	670 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	671 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	672 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	673 Complex *p = AminusSigmaB.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	674
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	675 for (octave_idx_type i = 0; i < n; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	676 p[i*(n+1)] -= sigma;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	677 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	678
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	679 ComplexLU fact (AminusSigmaB);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	680
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	681 L = fact.P ().transpose () * fact.L ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	682 U = fact.U ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	683 for (octave_idx_type j = 0; j < n; j++)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	684 P[j] = Q[j] = j;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	685
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	686 // Test condition number of LU decomposition
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	687 double minU = octave_NaN;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	688 double maxU = octave_NaN;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	689 for (octave_idx_type j = 0; j < n; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	690 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	691 double d = std::abs (U.xelem (j,j));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	692 if (xisnan (minU) \|\| d < minU)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	693 minU = d;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	694
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	695 if (xisnan (maxU) \|\| d > maxU)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	696 maxU = d;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	697 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	698
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	699 double rcond = (minU / maxU);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	700 volatile double rcond_plus_one = rcond + 1.0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	701
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	702 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
19410 95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	703 warn_convergence ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	704
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	705 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	706 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	707
21139 538b57866b90 consistently use "typename" intead of "class" in template declarations John W. Eaton <jwe@octave.org> parents: 21136 diff changeset	708 template <typename M>
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	709 octave_idx_type
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	710 EigsRealSymmetricMatrix (const M& m, const std::string typ,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	711 octave_idx_type k, octave_idx_type p,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	712 octave_idx_type &info, Matrix &eig_vec,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	713 ColumnVector &eig_val, const M& _b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	714 ColumnVector &permB, ColumnVector &resid,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	715 std::ostream& os, double tol, bool rvec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	716 bool cholB, int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	717 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	718 M b(_b);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	719 octave_idx_type n = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	720 octave_idx_type mode = 1;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	721 bool have_b = ! b.is_empty ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	722 bool note3 = false;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	723 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	724 double sigma = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	725 M bt;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	726
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	727 if (m.rows () != m.cols ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	728 (*current_liboctave_error_handler) ("eigs: A must be square");
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	729 if (have_b && (m.rows () != b.rows () \|\| m.rows () != b.cols ()))
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	730 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	731 ("eigs: B must be square and the same size as A");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	732
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	733 if (resid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	734 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	735 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	736 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	737 resid = ColumnVector (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	738 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	739 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	740
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	741 if (n < 3)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	742 (*current_liboctave_error_handler) ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	743
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	744 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	745 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	746 p = k * 2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	747
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	748 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	749 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	750
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	751 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	752 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	753 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	754
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	755 if (k < 1 \|\| k > n - 2)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	756 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	757 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1-1).\n"
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	758 " Use 'eig (full (A))' instead");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	759
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	760 if (p <= k \|\| p >= n)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	761 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	762 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	763
20974 1edf15793cac maint: Use is_empty rather than "numel () == 0" for clarity. Rik <rik@octave.org> parents: 20955 diff changeset	764 if (have_b && cholB && ! permB.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	765 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	766 // Check the we really have a permutation vector
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	767 if (permB.numel () != n)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	768 (*current_liboctave_error_handler) ("eigs: permB vector invalid");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	769
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	770 Array<bool> checked (dim_vector (n, 1), false);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	771 for (octave_idx_type i = 0; i < n; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	772 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	773 octave_idx_type bidx = static_cast<octave_idx_type> (permB(i));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	774
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	775 if (checked(bidx) \|\| bidx < 0 \|\| bidx >= n \|\| D_NINT (bidx) != bidx)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	776 (*current_liboctave_error_handler) ("eigs: permB vector invalid");
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	777 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	778 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	779
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	780 if (typ != "LM" && typ != "SM" && typ != "LA" && typ != "SA"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	781 && typ != "BE" && typ != "LR" && typ != "SR" && typ != "LI"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	782 && typ != "SI")
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	783 (*current_liboctave_error_handler) ("eigs: unrecognized sigma value");
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	784
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	785 if (typ == "LI" \|\| typ == "SI" \|\| typ == "LR" \|\| typ == "SR")
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	786 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	787 ("eigs: invalid sigma value for real symmetric problem");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	788
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	789 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	790 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	791 // See Note 3 dsaupd
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	792 note3 = true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	793 if (cholB)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	794 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	795 bt = b;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	796 b = b.transpose ();
20974 1edf15793cac maint: Use is_empty rather than "numel () == 0" for clarity. Rik <rik@octave.org> parents: 20955 diff changeset	797 if (permB.is_empty ())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	798 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	799 permB = ColumnVector (n);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	800 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	801 permB(i) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	802 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	803 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	804 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	805 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	806 if (! make_cholb (b, bt, permB))
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	807 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	808 ("eigs: The matrix B is not positive definite");
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	809 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	810 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	811
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	812 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	813 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	814
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	815 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	816 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	817 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	818 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	819 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	820 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	821 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	822 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	823 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	824 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	825 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	826 // ip(7) to ip(10) return values
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	827
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	828 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	829 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	830
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	831 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	832 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	833 octave_idx_type lwork = p * (p + 8);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	834
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	835 OCTAVE_LOCAL_BUFFER (double, v, n * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	836 OCTAVE_LOCAL_BUFFER (double, workl, lwork);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	837 OCTAVE_LOCAL_BUFFER (double, workd, 3 * n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	838 double *presid = resid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	839
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	840 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	841 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	842 F77_FUNC (dsaupd, DSAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	843 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	844 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	845 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	846 ipntr, workd, workl, lwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	847 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	848
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	849 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	850 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	851 ("eigs: unrecoverable exception encountered in dsaupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	852
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	853 if (disp > 0 && ! xisnan (workl[iptr (5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	854 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	855 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	856 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	857 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	858 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	859 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	860 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	861 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	862 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	863
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	864 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	865 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	866 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	867 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	868 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	869 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	870 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	871 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	872
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	873 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	874 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	875 if (have_b)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	876 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	877 Matrix mtmp (n,1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	878 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	879 mtmp(i,0) = workd[i + iptr(0) - 1];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	880
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	881 mtmp = utsolve (bt, permB, m * ltsolve (b, permB, mtmp));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	882
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	883 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	884 workd[i+iptr(1)-1] = mtmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	885 }
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	886 else if (! vector_product (m, workd + iptr(0) - 1,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	887 workd + iptr(1) - 1))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	888 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	889 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	890 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	891 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	892 if (info < 0)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	893 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	894 ("eigs: error %d in dsaupd", info);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	895
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	896 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	897 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	898 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	899 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	900
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	901 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	902
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	903 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	904 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	905 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	906 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	907 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	908 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	909 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	910 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	911 octave_idx_type *sel = s.fortran_vec ();
333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	912
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	913 eig_vec.resize (n, k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	914 double *z = eig_vec.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	915
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	916 eig_val.resize (k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	917 double *d = eig_val.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	918
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	919 F77_FUNC (dseupd, DSEUPD)
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	920 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, d, z, n, sigma,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	921 F77_CONST_CHAR_ARG2 (&bmat, 1), n,
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	922 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2), k, tol, presid, p, v, n, iparam,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	923 ipntr, workd, workl, lwork, info2 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	924 F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	925
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	926 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	927 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	928 ("eigs: unrecoverable exception encountered in dseupd");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	929
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	930 if (info2 == 0)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	931 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	932 octave_idx_type k2 = k / 2;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	933 if (typ != "SM" && typ != "BE")
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	934 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	935 for (octave_idx_type i = 0; i < k2; i++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	936 {
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	937 double dtmp = d[i];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	938 d[i] = d[k - i - 1];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	939 d[k - i - 1] = dtmp;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	940 }
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	941 }
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	942
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	943 if (rvec)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	944 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	945 if (typ != "SM" && typ != "BE")
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	946 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	947 OCTAVE_LOCAL_BUFFER (double, dtmp, n);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	948
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	949 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	950 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	951 octave_idx_type off1 = i * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	952 octave_idx_type off2 = (k - i - 1) * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	953
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	954 if (off1 == off2)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	955 continue;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	956
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	957 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	958 dtmp[j] = z[off1 + j];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	959
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	960 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	961 z[off1 + j] = z[off2 + j];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	962
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	963 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	964 z[off2 + j] = dtmp[j];
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	965 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	966 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	967
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	968 if (note3)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	969 eig_vec = ltsolve (b, permB, eig_vec);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	970 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	971 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	972 else
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	973 (*current_liboctave_error_handler) ("eigs: error %d in dseupd", info2);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	974
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	975 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	976 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	977
21139 538b57866b90 consistently use "typename" intead of "class" in template declarations John W. Eaton <jwe@octave.org> parents: 21136 diff changeset	978 template <typename M>
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	979 octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	980 EigsRealSymmetricMatrixShift (const M& m, double sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	981 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	982 octave_idx_type &info, Matrix &eig_vec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	983 ColumnVector &eig_val, const M& _b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	984 ColumnVector &permB, ColumnVector &resid,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	985 std::ostream& os, double tol, bool rvec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	986 bool cholB, int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	987 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	988 M b(_b);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	989 octave_idx_type n = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	990 octave_idx_type mode = 3;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	991 bool have_b = ! b.is_empty ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	992 std::string typ = "LM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	993
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	994 if (m.rows () != m.cols ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	995 (*current_liboctave_error_handler) ("eigs: A must be square");
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	996 if (have_b && (m.rows () != b.rows () \|\| m.rows () != b.cols ()))
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	997 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	998 ("eigs: B must be square and the same size as A");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	999
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1000 // FIXME: The "SM" type for mode 1 seems unstable though faster!!
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1001 //if (! std::abs (sigma))
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1002 // return EigsRealSymmetricMatrix (m, "SM", k, p, info, eig_vec, eig_val,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1003 // _b, permB, resid, os, tol, rvec, cholB,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1004 // disp, maxit);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1005
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1006 if (resid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1007 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1008 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1009 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1010 resid = ColumnVector (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1011 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1012 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1013
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1014 if (n < 3)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1015 (*current_liboctave_error_handler) ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1016
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1017 if (k <= 0 \|\| k >= n - 1)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1018 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1019 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1-1).\n"
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1020 " Use 'eig (full (A))' instead");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1021
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1022 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1023 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1024 p = k * 2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1025
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1026 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1027 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1028
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1029 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1030 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1031 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1032
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1033 if (p <= k \|\| p >= n)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1034 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1035 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1036
20974 1edf15793cac maint: Use is_empty rather than "numel () == 0" for clarity. Rik <rik@octave.org> parents: 20955 diff changeset	1037 if (have_b && cholB && ! permB.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1038 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1039 // Check the we really have a permutation vector
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	1040 if (permB.numel () != n)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1041 (*current_liboctave_error_handler) ("eigs: permB vector invalid");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1042
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1043 Array<bool> checked (dim_vector (n, 1), false);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1044 for (octave_idx_type i = 0; i < n; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1045 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1046 octave_idx_type bidx = static_cast<octave_idx_type> (permB(i));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1047
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1048 if (checked(bidx) \|\| bidx < 0 \|\| bidx >= n \|\| D_NINT (bidx) != bidx)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1049 (*current_liboctave_error_handler) ("eigs: permB vector invalid");
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1050 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1051 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1052
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1053 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1054 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1055 bmat = 'G';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1056
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1057 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1058 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1059
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1060 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1061 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1062 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1063 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1064 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1065 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1066 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1067 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1068 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1069 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1070 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1071 // ip(7) to ip(10) return values
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1072
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1073 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1074 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1075
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1076 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1077 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1078 M L, U;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1079
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1080 OCTAVE_LOCAL_BUFFER (octave_idx_type, P, (have_b ? b.rows () : m.rows ()));
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1081 OCTAVE_LOCAL_BUFFER (octave_idx_type, Q, (have_b ? b.cols () : m.cols ()));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1082
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1083 if (! LuAminusSigmaB (m, b, cholB, permB, sigma, L, U, P, Q))
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1084 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1085
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1086 octave_idx_type lwork = p * (p + 8);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1087
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1088 OCTAVE_LOCAL_BUFFER (double, v, n * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1089 OCTAVE_LOCAL_BUFFER (double, workl, lwork);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1090 OCTAVE_LOCAL_BUFFER (double, workd, 3 * n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1091 double *presid = resid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1092
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1093 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1094 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1095 F77_FUNC (dsaupd, DSAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1096 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1097 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1098 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1099 ipntr, workd, workl, lwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1100 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1101
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1102 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1103 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1104 ("eigs: unrecoverable exception encountered in dsaupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1105
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	1106 if (disp > 0 && ! xisnan (workl[iptr (5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1107 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1108 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1109 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1110 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1111 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1112 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1113 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1114 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1115 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1116
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1117 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1118 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1119 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1120 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1121 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1122 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1123 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1124 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1125
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1126 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1127 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1128 if (have_b)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1129 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1130 if (ido == -1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1131 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1132 OCTAVE_LOCAL_BUFFER (double, dtmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1133
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1134 vector_product (m, workd+iptr(0)-1, dtmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1135
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1136 Matrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1137
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1138 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1139 tmp(i,0) = dtmp[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1140
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1141 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1142
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1143 double *ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1144 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1145 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1146 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1147 else if (ido == 2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1148 vector_product (b, workd+iptr(0)-1, workd+iptr(1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1149 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1150 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1151 double *ip2 = workd+iptr(2)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1152 Matrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1153
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1154 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1155 tmp(i,0) = ip2[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1156
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1157 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1158
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1159 ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1160 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1161 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1162 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1163 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1164 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1165 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1166 if (ido == 2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1167 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1168 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1169 workd[iptr(0) + i - 1] = workd[iptr(1) + i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1170 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1171 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1172 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1173 double *ip2 = workd+iptr(0)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1174 Matrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1175
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1176 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1177 tmp(i,0) = ip2[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1178
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1179 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1180
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1181 ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1182 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1183 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1184 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1185 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1186 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1187 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1188 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1189 if (info < 0)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1190 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1191 ("eigs: error %d in dsaupd", info);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1192
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1193 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1194 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1195 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1196 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1197
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1198 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1199
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1200 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1201 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1202 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1203 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1204 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1205 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1206 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1207 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	1208 octave_idx_type *sel = s.fortran_vec ();
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1209
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1210 eig_vec.resize (n, k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1211 double *z = eig_vec.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1212
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1213 eig_val.resize (k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1214 double *d = eig_val.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1215
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1216 F77_FUNC (dseupd, DSEUPD)
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1217 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, d, z, n, sigma,
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1218 F77_CONST_CHAR_ARG2 (&bmat, 1), n,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1219 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1220 k, tol, presid, p, v, n, iparam, ipntr, workd, workl, lwork, info2
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1221 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1222
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1223 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1224 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1225 ("eigs: unrecoverable exception encountered in dseupd");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1226
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1227 if (info2 == 0)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1228 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1229 octave_idx_type k2 = k / 2;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1230 for (octave_idx_type i = 0; i < k2; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1231 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1232 double dtmp = d[i];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1233 d[i] = d[k - i - 1];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1234 d[k - i - 1] = dtmp;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1235 }
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1236
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1237 if (rvec)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1238 {
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1239 OCTAVE_LOCAL_BUFFER (double, dtmp, n);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1240
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1241 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1242 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1243 octave_idx_type off1 = i * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1244 octave_idx_type off2 = (k - i - 1) * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1245
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1246 if (off1 == off2)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1247 continue;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1248
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1249 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1250 dtmp[j] = z[off1 + j];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1251
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1252 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1253 z[off1 + j] = z[off2 + j];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1254
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1255 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1256 z[off2 + j] = dtmp[j];
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1257 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1258 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1259 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1260 else
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1261 (*current_liboctave_error_handler) ("eigs: error %d in dseupd", info2);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1262
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1263 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1264 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1265
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1266 octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1267 EigsRealSymmetricFunc (EigsFunc fun, octave_idx_type n,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1268 const std::string &_typ, double sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1269 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1270 octave_idx_type &info, Matrix &eig_vec,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1271 ColumnVector &eig_val, ColumnVector &resid,
10361 b4f67ca318d8 eigs-base.cc: fix prototypes for arpack functions John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	1272 std::ostream& os, double tol, bool rvec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1273 bool /* cholB */, int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1274 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1275 std::string typ (_typ);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1276 bool have_sigma = (sigma ? true : false);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1277 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1278 octave_idx_type mode = 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1279 int err = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1280
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1281 if (resid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1282 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1283 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1284 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1285 resid = ColumnVector (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1286 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1287 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1288
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1289 if (n < 3)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1290 (*current_liboctave_error_handler) ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1291
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1292 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1293 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1294 p = k * 2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1295
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1296 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1297 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1298
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1299 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1300 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1301 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1302
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1303 if (k <= 0 \|\| k >= n - 1)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1304 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1305 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1).\n"
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1306 " Use 'eig (full (A))' instead");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1307
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1308 if (p <= k \|\| p >= n)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1309 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1310 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1311
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1312 if (! have_sigma)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1313 {
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1314 if (typ != "LM" && typ != "SM" && typ != "LA" && typ != "SA"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1315 && typ != "BE" && typ != "LR" && typ != "SR" && typ != "LI"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1316 && typ != "SI")
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1317 (*current_liboctave_error_handler) ("eigs: unrecognized sigma value");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1318
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1319 if (typ == "LI" \|\| typ == "SI" \|\| typ == "LR" \|\| typ == "SR")
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1320 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1321 ("eigs: invalid sigma value for real symmetric problem");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1322
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1323 if (typ == "SM")
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1324 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1325 typ = "LM";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1326 sigma = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1327 mode = 3;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1328 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1329 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1330 else if (! std::abs (sigma))
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1331 typ = "SM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1332 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1333 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1334 typ = "LM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1335 mode = 3;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1336 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1337
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1338 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1339 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1340
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1341 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1342 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1343 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1344 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1345 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1346 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1347 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1348 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1349 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1350 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1351 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1352 // ip(7) to ip(10) return values
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1353
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1354 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1355 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1356
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1357 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1358 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1359 octave_idx_type lwork = p * (p + 8);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1360
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1361 OCTAVE_LOCAL_BUFFER (double, v, n * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1362 OCTAVE_LOCAL_BUFFER (double, workl, lwork);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1363 OCTAVE_LOCAL_BUFFER (double, workd, 3 * n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1364 double *presid = resid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1365
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1366 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1367 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1368 F77_FUNC (dsaupd, DSAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1369 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1370 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1371 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1372 ipntr, workd, workl, lwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1373 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1374
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1375 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1376 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1377 ("eigs: unrecoverable exception encountered in dsaupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1378
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	1379 if (disp > 0 && ! xisnan (workl[iptr (5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1380 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1381 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1382 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1383 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1384 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1385 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1386 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1387 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1388 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1389
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1390 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1391 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1392 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1393 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1394 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1395 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1396 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1397 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1398
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1399
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1400 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1401 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1402 double *ip2 = workd + iptr(0) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1403 ColumnVector x(n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1404
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1405 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1406 x(i) = *ip2++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1407
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1408 ColumnVector y = fun (x, err);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1409
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1410 if (err)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1411 return false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1412
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1413 ip2 = workd + iptr(1) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1414 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1415 *ip2++ = y(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1416 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1417 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1418 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1419 if (info < 0)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1420 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1421 ("eigs: error %d in dsaupd", info);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1422
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1423 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1424 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1425 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1426 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1427
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1428 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1429
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1430 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1431 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1432 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1433 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1434 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1435 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1436 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1437 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	1438 octave_idx_type *sel = s.fortran_vec ();
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1439
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1440 eig_vec.resize (n, k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1441 double *z = eig_vec.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1442
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1443 eig_val.resize (k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1444 double *d = eig_val.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1445
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1446 F77_FUNC (dseupd, DSEUPD)
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1447 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, d, z, n, sigma,
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1448 F77_CONST_CHAR_ARG2 (&bmat, 1), n,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1449 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1450 k, tol, presid, p, v, n, iparam, ipntr, workd, workl, lwork, info2
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1451 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1452
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1453 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1454 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1455 ("eigs: unrecoverable exception encountered in dseupd");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1456
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1457 if (info2 == 0)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1458 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1459 octave_idx_type k2 = k / 2;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1460 if (typ != "SM" && typ != "BE")
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1461 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1462 for (octave_idx_type i = 0; i < k2; i++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1463 {
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1464 double dtmp = d[i];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1465 d[i] = d[k - i - 1];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1466 d[k - i - 1] = dtmp;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1467 }
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1468 }
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1469
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1470 if (rvec)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1471 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1472 if (typ != "SM" && typ != "BE")
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1473 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1474 OCTAVE_LOCAL_BUFFER (double, dtmp, n);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1475
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1476 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1477 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1478 octave_idx_type off1 = i * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1479 octave_idx_type off2 = (k - i - 1) * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1480
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1481 if (off1 == off2)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1482 continue;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1483
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1484 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1485 dtmp[j] = z[off1 + j];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1486
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1487 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1488 z[off1 + j] = z[off2 + j];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1489
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1490 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1491 z[off2 + j] = dtmp[j];
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1492 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1493 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1494 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1495 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1496 else
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1497 (*current_liboctave_error_handler) ("eigs: error %d in dseupd", info2);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1498
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1499 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1500 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1501
21139 538b57866b90 consistently use "typename" intead of "class" in template declarations John W. Eaton <jwe@octave.org> parents: 21136 diff changeset	1502 template <typename M>
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1503 octave_idx_type
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1504 EigsRealNonSymmetricMatrix (const M& m, const std::string typ,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1505 octave_idx_type k, octave_idx_type p,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1506 octave_idx_type &info, ComplexMatrix &eig_vec,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1507 ComplexColumnVector &eig_val, const M& _b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1508 ColumnVector &permB, ColumnVector &resid,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1509 std::ostream& os, double tol, bool rvec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1510 bool cholB, int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1511 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1512 M b(_b);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1513 octave_idx_type n = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1514 octave_idx_type mode = 1;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1515 bool have_b = ! b.is_empty ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1516 bool note3 = false;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1517 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1518 double sigmar = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1519 double sigmai = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1520 M bt;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1521
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1522 if (m.rows () != m.cols ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1523 (*current_liboctave_error_handler) ("eigs: A must be square");
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1524 if (have_b && (m.rows () != b.rows () \|\| m.rows () != b.cols ()))
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1525 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1526 ("eigs: B must be square and the same size as A");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1527
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1528 if (resid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1529 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1530 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1531 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1532 resid = ColumnVector (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1533 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1534 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1535
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1536 if (n < 3)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1537 (*current_liboctave_error_handler) ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1538
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1539 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1540 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1541 p = k * 2 + 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1542
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1543 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1544 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1545
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1546 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1547 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1548 }
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1549
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1550 if (k <= 0 \|\| k >= n - 1)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1551 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1552 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1).\n"
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1553 " Use 'eig (full (A))' instead");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1554
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1555 if (p <= k \|\| p >= n)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1556 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1557 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1558
20974 1edf15793cac maint: Use is_empty rather than "numel () == 0" for clarity. Rik <rik@octave.org> parents: 20955 diff changeset	1559 if (have_b && cholB && ! permB.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1560 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1561 // Check the we really have a permutation vector
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	1562 if (permB.numel () != n)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1563 (*current_liboctave_error_handler) ("eigs: permB vector invalid");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1564
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1565 Array<bool> checked (dim_vector (n, 1), false);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1566 for (octave_idx_type i = 0; i < n; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1567 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1568 octave_idx_type bidx = static_cast<octave_idx_type> (permB(i));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1569
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1570 if (checked(bidx) \|\| bidx < 0 \|\| bidx >= n \|\| D_NINT (bidx) != bidx)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1571 (*current_liboctave_error_handler) ("eigs: permB vector invalid");
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1572 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1573 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1574
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1575 if (typ != "LM" && typ != "SM" && typ != "LA" && typ != "SA"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1576 && typ != "BE" && typ != "LR" && typ != "SR" && typ != "LI"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1577 && typ != "SI")
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1578 (*current_liboctave_error_handler) ("eigs: unrecognized sigma value");
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1579
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1580 if (typ == "LA" \|\| typ == "SA" \|\| typ == "BE")
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1581 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1582 ("eigs: invalid sigma value for unsymmetric problem");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1583
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1584 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1585 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1586 // See Note 3 dsaupd
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1587 note3 = true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1588 if (cholB)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1589 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1590 bt = b;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1591 b = b.transpose ();
20974 1edf15793cac maint: Use is_empty rather than "numel () == 0" for clarity. Rik <rik@octave.org> parents: 20955 diff changeset	1592 if (permB.is_empty ())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1593 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1594 permB = ColumnVector (n);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1595 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1596 permB(i) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1597 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1598 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1599 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1600 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1601 if (! make_cholb (b, bt, permB))
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1602 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1603 ("eigs: The matrix B is not positive definite");
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1604 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1605 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1606
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1607 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1608 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1609
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1610 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1611 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1612 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1613 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1614 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1615 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1616 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1617 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1618 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1619 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1620 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1621 // ip(7) to ip(10) return values
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1622
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1623 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1624 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1625
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1626 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1627 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1628 octave_idx_type lwork = 3 * p * (p + 2);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1629
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1630 OCTAVE_LOCAL_BUFFER (double, v, n * (p + 1));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1631 OCTAVE_LOCAL_BUFFER (double, workl, lwork + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1632 OCTAVE_LOCAL_BUFFER (double, workd, 3 * n + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1633 double *presid = resid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1634
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1635 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1636 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1637 F77_FUNC (dnaupd, DNAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1638 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1639 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1640 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1641 ipntr, workd, workl, lwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1642 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1643
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1644 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1645 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1646 ("eigs: unrecoverable exception encountered in dnaupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1647
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	1648 if (disp > 0 && ! xisnan(workl[iptr(5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1649 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1650 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1651 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1652 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1653 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1654 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1655 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1656 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1657 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1658
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1659 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1660 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1661 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1662 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1663 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1664 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1665 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1666 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1667
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1668 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1669 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1670 if (have_b)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1671 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1672 Matrix mtmp (n,1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1673 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1674 mtmp(i,0) = workd[i + iptr(0) - 1];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1675
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1676 mtmp = utsolve (bt, permB, m * ltsolve (b, permB, mtmp));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1677
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1678 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1679 workd[i+iptr(1)-1] = mtmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1680 }
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	1681 else if (! vector_product (m, workd + iptr(0) - 1,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1682 workd + iptr(1) - 1))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1683 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1684 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1685 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1686 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1687 if (info < 0)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1688 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1689 ("eigs: error %d in dnaupd", info);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1690
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1691 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1692 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1693 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1694 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1695
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1696 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1697
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1698 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1699 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1700 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1701 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1702 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1703 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1704 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1705 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	1706 octave_idx_type *sel = s.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1707
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1708 // FIXME: initialize eig_vec2 to zero; apparently dneupd can skip
12198 30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	1709 // the assignment to elements of Z that represent imaginary parts.
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	1710 // Found with valgrind and
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	1711 //
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	1712 // A = [1,0,0,-1;0,1,0,0;0,0,1,0;0,0,2,1];
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	1713 // [vecs, vals, f] = eigs (A, 1)
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	1714
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	1715 Matrix eig_vec2 (n, k + 1, 0.0);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1716 double *z = eig_vec2.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1717
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1718 OCTAVE_LOCAL_BUFFER (double, dr, k + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1719 OCTAVE_LOCAL_BUFFER (double, di, k + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1720 OCTAVE_LOCAL_BUFFER (double, workev, 3 * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1721 for (octave_idx_type i = 0; i < k+1; i++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1722 dr[i] = di[i] = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1723
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1724 F77_FUNC (dneupd, DNEUPD)
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1725 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, dr, di, z, n, sigmar,
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1726 sigmai, workev, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1727 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2), k, tol, presid, p, v, n, iparam,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1728 ipntr, workd, workl, lwork, info2 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1729 F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1730
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1731 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1732 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1733 ("eigs: unrecoverable exception encountered in dneupd");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1734
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1735 eig_val.resize (k+1);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1736 Complex *d = eig_val.fortran_vec ();
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1737
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1738 if (info2 == 0)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1739 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1740 octave_idx_type jj = 0;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1741 for (octave_idx_type i = 0; i < k+1; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1742 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1743 if (dr[i] == 0.0 && di[i] == 0.0 && jj == 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1744 jj++;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1745 else
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1746 d[i-jj] = Complex (dr[i], di[i]);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1747 }
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1748 if (jj == 0 && ! rvec)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1749 for (octave_idx_type i = 0; i < k; i++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1750 d[i] = d[i+1];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1751
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1752 octave_idx_type k2 = k / 2;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1753 for (octave_idx_type i = 0; i < k2; i++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1754 {
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1755 Complex dtmp = d[i];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1756 d[i] = d[k - i - 1];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1757 d[k - i - 1] = dtmp;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1758 }
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1759 eig_val.resize (k);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1760
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1761 if (rvec)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1762 {
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1763 OCTAVE_LOCAL_BUFFER (double, dtmp, n);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1764
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1765 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1766 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1767 octave_idx_type off1 = i * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1768 octave_idx_type off2 = (k - i - 1) * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1769
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1770 if (off1 == off2)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1771 continue;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1772
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1773 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1774 dtmp[j] = z[off1 + j];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1775
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1776 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1777 z[off1 + j] = z[off2 + j];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1778
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1779 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1780 z[off2 + j] = dtmp[j];
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1781 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1782
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1783 eig_vec.resize (n, k);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1784 octave_idx_type i = 0;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1785 while (i < k)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1786 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1787 octave_idx_type off1 = i * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1788 octave_idx_type off2 = (i+1) * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1789 if (std::imag (eig_val(i)) == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1790 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1791 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1792 eig_vec(j,i) =
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1793 Complex (z[j+off1],0.);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1794 i++;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1795 }
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1796 else
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1797 {
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1798 for (octave_idx_type j = 0; j < n; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1799 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1800 eig_vec(j,i) =
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1801 Complex (z[j+off1],z[j+off2]);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1802 if (i < k - 1)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1803 eig_vec(j,i+1) =
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1804 Complex (z[j+off1],-z[j+off2]);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1805 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1806 i+=2;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1807 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1808 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1809
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1810 if (note3)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1811 eig_vec = ltsolve (M(b), permB, eig_vec);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1812 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1813 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1814 else
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1815 (*current_liboctave_error_handler) ("eigs: error %d in dneupd", info2);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1816
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1817 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1818 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1819
21139 538b57866b90 consistently use "typename" intead of "class" in template declarations John W. Eaton <jwe@octave.org> parents: 21136 diff changeset	1820 template <typename M>
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1821 octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1822 EigsRealNonSymmetricMatrixShift (const M& m, double sigmar,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1823 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1824 octave_idx_type &info,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1825 ComplexMatrix &eig_vec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1826 ComplexColumnVector &eig_val, const M& _b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1827 ColumnVector &permB, ColumnVector &resid,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1828 std::ostream& os, double tol, bool rvec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1829 bool cholB, int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1830 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1831 M b(_b);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1832 octave_idx_type n = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1833 octave_idx_type mode = 3;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1834 bool have_b = ! b.is_empty ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1835 std::string typ = "LM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1836 double sigmai = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1837
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1838 if (m.rows () != m.cols ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1839 (*current_liboctave_error_handler) ("eigs: A must be square");
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1840 if (have_b && (m.rows () != b.rows () \|\| m.rows () != b.cols ()))
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1841 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1842 ("eigs: B must be square and the same size as A");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1843
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1844 // FIXME: The "SM" type for mode 1 seems unstable though faster!!
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1845 //if (! std::abs (sigmar))
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1846 // return EigsRealNonSymmetricMatrix (m, "SM", k, p, info, eig_vec, eig_val,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1847 // _b, permB, resid, os, tol, rvec, cholB,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1848 // disp, maxit);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1849
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1850 if (resid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1851 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1852 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1853 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1854 resid = ColumnVector (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1855 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1856 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1857
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1858 if (n < 3)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1859 (*current_liboctave_error_handler) ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1860
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1861 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1862 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1863 p = k * 2 + 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1864
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1865 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1866 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1867
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1868 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1869 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1870 }
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1871
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1872 if (k <= 0 \|\| k >= n - 1)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1873 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1874 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1).\n"
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1875 " Use 'eig (full (A))' instead");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1876
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1877 if (p <= k \|\| p >= n)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1878 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1879 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1880
20974 1edf15793cac maint: Use is_empty rather than "numel () == 0" for clarity. Rik <rik@octave.org> parents: 20955 diff changeset	1881 if (have_b && cholB && ! permB.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1882 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1883 // Check that we really have a permutation vector
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	1884 if (permB.numel () != n)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1885 (*current_liboctave_error_handler) ("eigs: permB vector invalid");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1886
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1887 Array<bool> checked (dim_vector (n, 1), false);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1888 for (octave_idx_type i = 0; i < n; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1889 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1890 octave_idx_type bidx = static_cast<octave_idx_type> (permB(i));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1891
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1892 if (checked(bidx) \|\| bidx < 0 \|\| bidx >= n \|\| D_NINT (bidx) != bidx)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1893 (*current_liboctave_error_handler) ("eigs: permB vector invalid");
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1894 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1895 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1896
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1897 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1898 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1899 bmat = 'G';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1900
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1901 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1902 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1903
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1904 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1905 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1906 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1907 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1908 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1909 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1910 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1911 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1912 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1913 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1914 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1915 // ip(7) to ip(10) return values
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1916
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1917 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1918 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1919
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1920 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1921 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1922 M L, U;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1923
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1924 OCTAVE_LOCAL_BUFFER (octave_idx_type, P, (have_b ? b.rows () : m.rows ()));
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1925 OCTAVE_LOCAL_BUFFER (octave_idx_type, Q, (have_b ? b.cols () : m.cols ()));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1926
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1927 if (! LuAminusSigmaB (m, b, cholB, permB, sigmar, L, U, P, Q))
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1928 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1929
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1930 octave_idx_type lwork = 3 * p * (p + 2);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1931
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1932 OCTAVE_LOCAL_BUFFER (double, v, n * (p + 1));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1933 OCTAVE_LOCAL_BUFFER (double, workl, lwork + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1934 OCTAVE_LOCAL_BUFFER (double, workd, 3 * n + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1935 double *presid = resid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1936
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1937 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1938 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1939 F77_FUNC (dnaupd, DNAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1940 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1941 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1942 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1943 ipntr, workd, workl, lwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1944 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1945
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1946 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1947 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	1948 ("eigs: unrecoverable exception encountered in dsaupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1949
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	1950 if (disp > 0 && ! xisnan (workl[iptr (5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1951 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1952 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1953 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1954 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1955 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1956 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1957 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1958 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1959 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1960
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1961 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1962 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1963 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1964 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1965 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1966 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1967 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1968 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1969
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1970 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1971 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1972 if (have_b)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1973 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1974 if (ido == -1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1975 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1976 OCTAVE_LOCAL_BUFFER (double, dtmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1977
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1978 vector_product (m, workd+iptr(0)-1, dtmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1979
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1980 Matrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1981
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1982 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1983 tmp(i,0) = dtmp[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1984
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1985 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1986
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1987 double *ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1988 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1989 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1990 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1991 else if (ido == 2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1992 vector_product (b, workd+iptr(0)-1, workd+iptr(1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1993 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1994 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1995 double *ip2 = workd+iptr(2)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1996 Matrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1997
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1998 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1999 tmp(i,0) = ip2[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2000
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2001 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2002
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2003 ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2004 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2005 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2006 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2007 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2008 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2009 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2010 if (ido == 2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2011 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2012 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2013 workd[iptr(0) + i - 1] = workd[iptr(1) + i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2014 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2015 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2016 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2017 double *ip2 = workd+iptr(0)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2018 Matrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2019
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2020 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2021 tmp(i,0) = ip2[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2022
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2023 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2024
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2025 ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2026 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2027 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2028 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2029 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2030 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2031 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2032 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2033 if (info < 0)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2034 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2035 ("eigs: error %d in dsaupd", info);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2036
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2037 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2038 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2039 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2040 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2041
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2042 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2043
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2044 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2045 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2046 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2047 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2048 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2049 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2050 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2051 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	2052 octave_idx_type *sel = s.fortran_vec ();
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2053
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2054 // FIXME: initialize eig_vec2 to zero; apparently dneupd can skip
12198 30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2055 // the assignment to elements of Z that represent imaginary parts.
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2056 // Found with valgrind and
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2057 //
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2058 // A = [1,0,0,-1;0,1,0,0;0,0,1,0;0,0,2,1];
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2059 // [vecs, vals, f] = eigs (A, 1)
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2060
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2061 Matrix eig_vec2 (n, k + 1, 0.0);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2062 double *z = eig_vec2.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2063
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2064 OCTAVE_LOCAL_BUFFER (double, dr, k + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2065 OCTAVE_LOCAL_BUFFER (double, di, k + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2066 OCTAVE_LOCAL_BUFFER (double, workev, 3 * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2067 for (octave_idx_type i = 0; i < k+1; i++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2068 dr[i] = di[i] = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2069
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2070 F77_FUNC (dneupd, DNEUPD)
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2071 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, dr, di, z, n, sigmar,
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2072 sigmai, workev, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2073 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2), k, tol, presid, p, v, n, iparam,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2074 ipntr, workd, workl, lwork, info2 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2075 F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2076
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2077 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2078 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2079 ("eigs: unrecoverable exception encountered in dneupd");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2080
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2081 eig_val.resize (k+1);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2082 Complex *d = eig_val.fortran_vec ();
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2083
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2084 if (info2 == 0)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2085 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2086 octave_idx_type jj = 0;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2087 for (octave_idx_type i = 0; i < k+1; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2088 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2089 if (dr[i] == 0.0 && di[i] == 0.0 && jj == 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2090 jj++;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2091 else
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2092 d[i-jj] = Complex (dr[i], di[i]);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2093 }
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2094 if (jj == 0 && ! rvec)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2095 for (octave_idx_type i = 0; i < k; i++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2096 d[i] = d[i+1];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2097
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2098 octave_idx_type k2 = k / 2;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2099 for (octave_idx_type i = 0; i < k2; i++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2100 {
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2101 Complex dtmp = d[i];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2102 d[i] = d[k - i - 1];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2103 d[k - i - 1] = dtmp;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2104 }
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2105 eig_val.resize (k);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2106
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2107 if (rvec)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2108 {
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2109 OCTAVE_LOCAL_BUFFER (double, dtmp, n);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2110
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2111 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2112 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2113 octave_idx_type off1 = i * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2114 octave_idx_type off2 = (k - i - 1) * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2115
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2116 if (off1 == off2)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2117 continue;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2118
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2119 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2120 dtmp[j] = z[off1 + j];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2121
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2122 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2123 z[off1 + j] = z[off2 + j];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2124
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2125 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2126 z[off2 + j] = dtmp[j];
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2127 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2128
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2129 eig_vec.resize (n, k);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2130 octave_idx_type i = 0;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2131 while (i < k)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2132 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2133 octave_idx_type off1 = i * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2134 octave_idx_type off2 = (i+1) * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2135 if (std::imag (eig_val(i)) == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2136 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2137 for (octave_idx_type j = 0; j < n; j++)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2138 eig_vec(j,i) =
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2139 Complex (z[j+off1],0.);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2140 i++;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2141 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2142 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2143 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2144 for (octave_idx_type j = 0; j < n; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2145 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2146 eig_vec(j,i) =
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2147 Complex (z[j+off1],z[j+off2]);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2148 if (i < k - 1)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2149 eig_vec(j,i+1) =
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2150 Complex (z[j+off1],-z[j+off2]);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2151 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2152 i+=2;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2153 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2154 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2155 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2156 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2157 else
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2158 (*current_liboctave_error_handler) ("eigs: error %d in dneupd", info2);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2159
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2160 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2161 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2162
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2163 octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2164 EigsRealNonSymmetricFunc (EigsFunc fun, octave_idx_type n,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2165 const std::string &_typ, double sigmar,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2166 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2167 octave_idx_type &info, ComplexMatrix &eig_vec,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2168 ComplexColumnVector &eig_val, ColumnVector &resid,
10361 b4f67ca318d8 eigs-base.cc: fix prototypes for arpack functions John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	2169 std::ostream& os, double tol, bool rvec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2170 bool /* cholB */, int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2171 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2172 std::string typ (_typ);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2173 bool have_sigma = (sigmar ? true : false);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2174 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2175 double sigmai = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2176 octave_idx_type mode = 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2177 int err = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2178
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2179 if (resid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2180 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2181 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2182 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2183 resid = ColumnVector (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2184 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2185 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2186
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2187 if (n < 3)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2188 (*current_liboctave_error_handler) ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2189
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2190 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2191 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2192 p = k * 2 + 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2193
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2194 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2195 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2196
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2197 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2198 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2199 }
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2200
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2201 if (k <= 0 \|\| k >= n - 1)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2202 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2203 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1).\n"
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2204 " Use 'eig (full (A))' instead");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2205
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2206 if (p <= k \|\| p >= n)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2207 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2208 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2209
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2210
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2211 if (! have_sigma)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2212 {
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	2213 if (typ != "LM" && typ != "SM" && typ != "LA" && typ != "SA"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	2214 && typ != "BE" && typ != "LR" && typ != "SR" && typ != "LI"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	2215 && typ != "SI")
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2216 (*current_liboctave_error_handler) ("eigs: unrecognized sigma value");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2217
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2218 if (typ == "LA" \|\| typ == "SA" \|\| typ == "BE")
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2219 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2220 ("eigs: invalid sigma value for unsymmetric problem");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2221
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2222 if (typ == "SM")
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2223 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2224 typ = "LM";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2225 sigmar = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2226 mode = 3;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2227 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2228 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2229 else if (! std::abs (sigmar))
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2230 typ = "SM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2231 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2232 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2233 typ = "LM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2234 mode = 3;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2235 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2236
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2237 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2238 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2239
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2240 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2241 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2242 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2243 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2244 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2245 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2246 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2247 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2248 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2249 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2250 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2251 // ip(7) to ip(10) return values
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2252
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2253 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2254 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2255
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2256 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2257 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2258 octave_idx_type lwork = 3 * p * (p + 2);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2259
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2260 OCTAVE_LOCAL_BUFFER (double, v, n * (p + 1));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2261 OCTAVE_LOCAL_BUFFER (double, workl, lwork + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2262 OCTAVE_LOCAL_BUFFER (double, workd, 3 * n + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2263 double *presid = resid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2264
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2265 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2266 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2267 F77_FUNC (dnaupd, DNAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2268 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2269 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2270 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2271 ipntr, workd, workl, lwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2272 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2273
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2274 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2275 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2276 ("eigs: unrecoverable exception encountered in dnaupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2277
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	2278 if (disp > 0 && ! xisnan(workl[iptr(5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2279 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2280 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2281 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2282 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2283 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2284 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2285 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2286 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2287 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2288
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2289 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2290 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2291 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2292 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2293 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2294 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2295 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2296 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2297
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2298 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2299 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2300 double *ip2 = workd + iptr(0) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2301 ColumnVector x(n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2302
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2303 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2304 x(i) = *ip2++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2305
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2306 ColumnVector y = fun (x, err);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2307
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2308 if (err)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2309 return false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2310
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2311 ip2 = workd + iptr(1) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2312 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2313 *ip2++ = y(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2314 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2315 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2316 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2317 if (info < 0)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2318 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2319 ("eigs: error %d in dsaupd", info);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2320
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2321 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2322 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2323 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2324 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2325
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2326 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2327
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2328 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2329 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2330 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2331 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2332 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2333 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2334 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2335 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	2336 octave_idx_type *sel = s.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2337
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2338 // FIXME: initialize eig_vec2 to zero; apparently dneupd can skip
12198 30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2339 // the assignment to elements of Z that represent imaginary parts.
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2340 // Found with valgrind and
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2341 //
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2342 // A = [1,0,0,-1;0,1,0,0;0,0,1,0;0,0,2,1];
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2343 // [vecs, vals, f] = eigs (A, 1)
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2344
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2345 Matrix eig_vec2 (n, k + 1, 0.0);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2346 double *z = eig_vec2.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2347
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2348 OCTAVE_LOCAL_BUFFER (double, dr, k + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2349 OCTAVE_LOCAL_BUFFER (double, di, k + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2350 OCTAVE_LOCAL_BUFFER (double, workev, 3 * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2351 for (octave_idx_type i = 0; i < k+1; i++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2352 dr[i] = di[i] = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2353
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2354 F77_FUNC (dneupd, DNEUPD)
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2355 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, dr, di, z, n, sigmar,
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2356 sigmai, workev, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2357 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2), k, tol, presid, p, v, n, iparam,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2358 ipntr, workd, workl, lwork, info2 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2359 F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2360
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2361 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2362 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2363 ("eigs: unrecoverable exception encountered in dneupd");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2364
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2365 eig_val.resize (k+1);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2366 Complex *d = eig_val.fortran_vec ();
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2367
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2368 if (info2 == 0)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2369 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2370 octave_idx_type jj = 0;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2371 for (octave_idx_type i = 0; i < k+1; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2372 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2373 if (dr[i] == 0.0 && di[i] == 0.0 && jj == 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2374 jj++;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2375 else
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2376 d[i-jj] = Complex (dr[i], di[i]);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2377 }
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2378 if (jj == 0 && ! rvec)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2379 for (octave_idx_type i = 0; i < k; i++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2380 d[i] = d[i+1];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2381
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2382 octave_idx_type k2 = k / 2;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2383 for (octave_idx_type i = 0; i < k2; i++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2384 {
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2385 Complex dtmp = d[i];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2386 d[i] = d[k - i - 1];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2387 d[k - i - 1] = dtmp;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2388 }
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2389 eig_val.resize (k);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2390
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2391 if (rvec)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2392 {
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2393 OCTAVE_LOCAL_BUFFER (double, dtmp, n);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2394
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2395 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2396 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2397 octave_idx_type off1 = i * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2398 octave_idx_type off2 = (k - i - 1) * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2399
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2400 if (off1 == off2)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2401 continue;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2402
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2403 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2404 dtmp[j] = z[off1 + j];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2405
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2406 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2407 z[off1 + j] = z[off2 + j];
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2408
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2409 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2410 z[off2 + j] = dtmp[j];
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2411 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2412
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2413 eig_vec.resize (n, k);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2414 octave_idx_type i = 0;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2415 while (i < k)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2416 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2417 octave_idx_type off1 = i * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2418 octave_idx_type off2 = (i+1) * n;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2419 if (std::imag (eig_val(i)) == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2420 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2421 for (octave_idx_type j = 0; j < n; j++)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2422 eig_vec(j,i) =
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2423 Complex (z[j+off1],0.);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2424 i++;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2425 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2426 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2427 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2428 for (octave_idx_type j = 0; j < n; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2429 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2430 eig_vec(j,i) =
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2431 Complex (z[j+off1],z[j+off2]);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2432 if (i < k - 1)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2433 eig_vec(j,i+1) =
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2434 Complex (z[j+off1],-z[j+off2]);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2435 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2436 i+=2;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2437 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2438 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2439 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2440 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2441 else
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2442 (*current_liboctave_error_handler) ("eigs: error %d in dneupd", info2);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2443
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2444 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2445 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2446
21139 538b57866b90 consistently use "typename" intead of "class" in template declarations John W. Eaton <jwe@octave.org> parents: 21136 diff changeset	2447 template <typename M>
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2448 octave_idx_type
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2449 EigsComplexNonSymmetricMatrix (const M& m, const std::string typ,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2450 octave_idx_type k, octave_idx_type p,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2451 octave_idx_type &info, ComplexMatrix &eig_vec,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2452 ComplexColumnVector &eig_val, const M& _b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2453 ColumnVector &permB,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2454 ComplexColumnVector &cresid,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2455 std::ostream& os, double tol, bool rvec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2456 bool cholB, int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2457 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2458 M b(_b);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2459 octave_idx_type n = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2460 octave_idx_type mode = 1;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2461 bool have_b = ! b.is_empty ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2462 bool note3 = false;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2463 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2464 Complex sigma = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2465 M bt;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2466
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2467 if (m.rows () != m.cols ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2468 (*current_liboctave_error_handler) ("eigs: A must be square");
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2469 if (have_b && (m.rows () != b.rows () \|\| m.rows () != b.cols ()))
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2470 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2471 ("eigs: B must be square and the same size as A");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2472
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2473 if (cresid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2474 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2475 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2476 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2477 Array<double> rr (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2478 Array<double> ri (octave_rand::vector (n));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2479 cresid = ComplexColumnVector (n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2480 for (octave_idx_type i = 0; i < n; i++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2481 cresid(i) = Complex (rr(i),ri(i));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2482 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2483 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2484
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2485 if (n < 3)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2486 (*current_liboctave_error_handler) ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2487
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2488 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2489 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2490 p = k * 2 + 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2491
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2492 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2493 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2494
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2495 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2496 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2497 }
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2498
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2499 if (k <= 0 \|\| k >= n - 1)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2500 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2501 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1).\n"
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2502 " Use 'eig (full (A))' instead");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2503
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2504 if (p <= k \|\| p >= n)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2505 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2506 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2507
20974 1edf15793cac maint: Use is_empty rather than "numel () == 0" for clarity. Rik <rik@octave.org> parents: 20955 diff changeset	2508 if (have_b && cholB && ! permB.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2509 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2510 // Check the we really have a permutation vector
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	2511 if (permB.numel () != n)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2512 (*current_liboctave_error_handler) ("eigs: permB vector invalid");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2513
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2514 Array<bool> checked (dim_vector (n, 1), false);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2515 for (octave_idx_type i = 0; i < n; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2516 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2517 octave_idx_type bidx = static_cast<octave_idx_type> (permB(i));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2518
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2519 if (checked(bidx) \|\| bidx < 0 \|\| bidx >= n \|\| D_NINT (bidx) != bidx)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2520 (*current_liboctave_error_handler) ("eigs: permB vector invalid");
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2521 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2522 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2523
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	2524 if (typ != "LM" && typ != "SM" && typ != "LA" && typ != "SA"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	2525 && typ != "BE" && typ != "LR" && typ != "SR" && typ != "LI"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	2526 && typ != "SI")
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2527 (*current_liboctave_error_handler) ("eigs: unrecognized sigma value");
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2528
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2529 if (typ == "LA" \|\| typ == "SA" \|\| typ == "BE")
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2530 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2531 ("eigs: invalid sigma value for complex problem");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2532
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2533 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2534 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2535 // See Note 3 dsaupd
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2536 note3 = true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2537 if (cholB)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2538 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2539 bt = b;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2540 b = b.hermitian ();
20974 1edf15793cac maint: Use is_empty rather than "numel () == 0" for clarity. Rik <rik@octave.org> parents: 20955 diff changeset	2541 if (permB.is_empty ())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2542 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2543 permB = ColumnVector (n);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2544 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2545 permB(i) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2546 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2547 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2548 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2549 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2550 if (! make_cholb (b, bt, permB))
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2551 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2552 ("eigs: The matrix B is not positive definite");
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2553 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2554 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2555
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2556 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2557 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2558
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2559 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2560 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2561 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2562 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2563 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2564 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2565 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2566 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2567 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2568 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2569 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2570 // ip(7) to ip(10) return values
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2571
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2572 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2573 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2574
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2575 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2576 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2577 octave_idx_type lwork = p * (3 * p + 5);
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2578
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2579 OCTAVE_LOCAL_BUFFER (Complex, v, n * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2580 OCTAVE_LOCAL_BUFFER (Complex, workl, lwork);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2581 OCTAVE_LOCAL_BUFFER (Complex, workd, 3 * n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2582 OCTAVE_LOCAL_BUFFER (double, rwork, p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2583 Complex *presid = cresid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2584
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2585 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2586 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2587 F77_FUNC (znaupd, ZNAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2588 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2589 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2590 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2591 ipntr, workd, workl, lwork, rwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2592 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2593
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2594 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2595 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2596 ("eigs: unrecoverable exception encountered in znaupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2597
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	2598 if (disp > 0 && ! xisnan (workl[iptr (5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2599 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2600 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2601 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2602 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2603 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2604 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2605 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2606 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2607 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2608
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2609 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2610 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2611 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2612 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2613 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2614 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2615 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2616 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2617
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2618 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2619 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2620 if (have_b)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2621 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2622 ComplexMatrix mtmp (n,1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2623 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2624 mtmp(i,0) = workd[i + iptr(0) - 1];
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2625 mtmp = utsolve (bt, permB, m * ltsolve (b, permB, mtmp));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2626 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2627 workd[i+iptr(1)-1] = mtmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2628
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2629 }
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	2630 else if (! vector_product (m, workd + iptr(0) - 1,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2631 workd + iptr(1) - 1))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2632 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2633 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2634 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2635 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2636 if (info < 0)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2637 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2638 ("eigs: error %d in znaupd", info);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2639
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2640 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2641 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2642 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2643 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2644
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2645 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2646
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2647 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2648 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2649 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2650 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2651 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2652 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2653 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2654 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	2655 octave_idx_type *sel = s.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2656
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2657 eig_vec.resize (n, k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2658 Complex *z = eig_vec.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2659
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2660 eig_val.resize (k+1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2661 Complex *d = eig_val.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2662
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2663 OCTAVE_LOCAL_BUFFER (Complex, workev, 2 * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2664
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2665 F77_FUNC (zneupd, ZNEUPD)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2666 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, d, z, n, sigma, workev,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2667 F77_CONST_CHAR_ARG2 (&bmat, 1), n,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2668 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2669 k, tol, presid, p, v, n, iparam, ipntr, workd, workl, lwork, rwork, info2
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2670 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2671
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2672 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2673 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2674 ("eigs: unrecoverable exception encountered in zneupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2675
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2676 if (info2 == 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2677 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2678 octave_idx_type k2 = k / 2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2679 for (octave_idx_type i = 0; i < k2; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2680 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2681 Complex ctmp = d[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2682 d[i] = d[k - i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2683 d[k - i - 1] = ctmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2684 }
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2685 eig_val.resize (k);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2686
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2687 if (rvec)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2688 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2689 OCTAVE_LOCAL_BUFFER (Complex, ctmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2690
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2691 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2692 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2693 octave_idx_type off1 = i * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2694 octave_idx_type off2 = (k - i - 1) * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2695
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2696 if (off1 == off2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2697 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2698
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2699 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2700 ctmp[j] = z[off1 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2701
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2702 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2703 z[off1 + j] = z[off2 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2704
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2705 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2706 z[off2 + j] = ctmp[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2707 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2708
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2709 if (note3)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2710 eig_vec = ltsolve (b, permB, eig_vec);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2711 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2712 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2713 else
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2714 (*current_liboctave_error_handler) ("eigs: error %d in zneupd", info2);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2715
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2716 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2717 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2718
21139 538b57866b90 consistently use "typename" intead of "class" in template declarations John W. Eaton <jwe@octave.org> parents: 21136 diff changeset	2719 template <typename M>
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2720 octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2721 EigsComplexNonSymmetricMatrixShift (const M& m, Complex sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2722 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2723 octave_idx_type &info,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2724 ComplexMatrix &eig_vec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2725 ComplexColumnVector &eig_val, const M& _b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2726 ColumnVector &permB,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2727 ComplexColumnVector &cresid,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2728 std::ostream& os, double tol, bool rvec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2729 bool cholB, int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2730 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2731 M b(_b);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2732 octave_idx_type n = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2733 octave_idx_type mode = 3;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2734 bool have_b = ! b.is_empty ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2735 std::string typ = "LM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2736
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2737 if (m.rows () != m.cols ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2738 (*current_liboctave_error_handler) ("eigs: A must be square");
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2739 if (have_b && (m.rows () != b.rows () \|\| m.rows () != b.cols ()))
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2740 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2741 ("eigs: B must be square and the same size as A");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2742
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2743 // FIXME: The "SM" type for mode 1 seems unstable though faster!!
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2744 //if (! std::abs (sigma))
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2745 // return EigsComplexNonSymmetricMatrix (m, "SM", k, p, info, eig_vec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2746 // eig_val, _b, permB, cresid, os, tol,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2747 // rvec, cholB, disp, maxit);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2748
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2749 if (cresid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2750 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2751 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2752 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2753 Array<double> rr (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2754 Array<double> ri (octave_rand::vector (n));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2755 cresid = ComplexColumnVector (n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2756 for (octave_idx_type i = 0; i < n; i++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2757 cresid(i) = Complex (rr(i),ri(i));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2758 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2759 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2760
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2761 if (n < 3)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2762 (*current_liboctave_error_handler) ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2763
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2764 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2765 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2766 p = k * 2 + 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2767
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2768 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2769 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2770
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2771 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2772 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2773 }
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2774
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2775 if (k <= 0 \|\| k >= n - 1)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2776 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2777 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1).\n"
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2778 " Use 'eig (full (A))' instead");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2779
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2780 if (p <= k \|\| p >= n)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2781 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2782 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2783
20974 1edf15793cac maint: Use is_empty rather than "numel () == 0" for clarity. Rik <rik@octave.org> parents: 20955 diff changeset	2784 if (have_b && cholB && ! permB.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2785 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2786 // Check that we really have a permutation vector
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	2787 if (permB.numel () != n)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2788 (*current_liboctave_error_handler) ("eigs: permB vector invalid");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2789
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2790 Array<bool> checked (dim_vector (n, 1), false);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2791 for (octave_idx_type i = 0; i < n; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2792 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2793 octave_idx_type bidx = static_cast<octave_idx_type> (permB(i));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2794
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2795 if (checked(bidx) \|\| bidx < 0 \|\| bidx >= n \|\| D_NINT (bidx) != bidx)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2796 (*current_liboctave_error_handler) ("eigs: permB vector invalid");
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2797 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2798 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2799
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2800 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2801 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2802 bmat = 'G';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2803
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2804 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2805 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2806
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2807 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2808 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2809 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2810 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2811 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2812 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2813 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2814 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2815 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2816 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2817 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2818 // ip(7) to ip(10) return values
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2819
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2820 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2821 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2822
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2823 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2824 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2825 M L, U;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2826
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2827 OCTAVE_LOCAL_BUFFER (octave_idx_type, P, (have_b ? b.rows () : m.rows ()));
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2828 OCTAVE_LOCAL_BUFFER (octave_idx_type, Q, (have_b ? b.cols () : m.cols ()));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2829
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2830 if (! LuAminusSigmaB (m, b, cholB, permB, sigma, L, U, P, Q))
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2831 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2832
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2833 octave_idx_type lwork = p * (3 * p + 5);
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2834
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2835 OCTAVE_LOCAL_BUFFER (Complex, v, n * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2836 OCTAVE_LOCAL_BUFFER (Complex, workl, lwork);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2837 OCTAVE_LOCAL_BUFFER (Complex, workd, 3 * n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2838 OCTAVE_LOCAL_BUFFER (double, rwork, p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2839 Complex *presid = cresid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2840
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2841 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2842 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2843 F77_FUNC (znaupd, ZNAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2844 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2845 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2846 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2847 ipntr, workd, workl, lwork, rwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2848 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2849
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2850 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2851 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2852 ("eigs: unrecoverable exception encountered in znaupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2853
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	2854 if (disp > 0 && ! xisnan(workl[iptr(5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2855 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2856 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2857 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2858 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2859 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2860 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2861 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2862 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2863 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2864
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2865 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2866 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2867 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2868 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2869 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2870 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2871 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2872 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2873
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2874 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2875 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2876 if (have_b)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2877 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2878 if (ido == -1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2879 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2880 OCTAVE_LOCAL_BUFFER (Complex, ctmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2881
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2882 vector_product (m, workd+iptr(0)-1, ctmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2883
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2884 ComplexMatrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2885
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2886 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2887 tmp(i,0) = ctmp[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2888
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2889 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2890
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2891 Complex *ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2892 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2893 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2894 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2895 else if (ido == 2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2896 vector_product (b, workd + iptr(0) - 1, workd + iptr(1) - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2897 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2898 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2899 Complex *ip2 = workd+iptr(2)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2900 ComplexMatrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2901
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2902 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2903 tmp(i,0) = ip2[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2904
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2905 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2906
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2907 ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2908 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2909 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2910 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2911 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2912 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2913 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2914 if (ido == 2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2915 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2916 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2917 workd[iptr(0) + i - 1] =
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2918 workd[iptr(1) + i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2919 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2920 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2921 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2922 Complex *ip2 = workd+iptr(0)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2923 ComplexMatrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2924
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2925 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2926 tmp(i,0) = ip2[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2927
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2928 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2929
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2930 ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2931 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2932 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2933 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2934 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2935 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2936 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2937 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2938 if (info < 0)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2939 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2940 ("eigs: error %d in dsaupd", info);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2941
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2942 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2943 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2944 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2945 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2946
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2947 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2948
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2949 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2950 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2951 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2952 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2953 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2954 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2955 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2956 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	2957 octave_idx_type *sel = s.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2958
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2959 eig_vec.resize (n, k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2960 Complex *z = eig_vec.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2961
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2962 eig_val.resize (k+1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2963 Complex *d = eig_val.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2964
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2965 OCTAVE_LOCAL_BUFFER (Complex, workev, 2 * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2966
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2967 F77_FUNC (zneupd, ZNEUPD)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2968 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, d, z, n, sigma, workev,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2969 F77_CONST_CHAR_ARG2 (&bmat, 1), n,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2970 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2971 k, tol, presid, p, v, n, iparam, ipntr, workd, workl, lwork, rwork, info2
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2972 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2973
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2974 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2975 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	2976 ("eigs: unrecoverable exception encountered in zneupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2977
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2978 if (info2 == 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2979 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2980 octave_idx_type k2 = k / 2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2981 for (octave_idx_type i = 0; i < k2; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2982 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2983 Complex ctmp = d[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2984 d[i] = d[k - i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2985 d[k - i - 1] = ctmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2986 }
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2987 eig_val.resize (k);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2988
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2989 if (rvec)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2990 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2991 OCTAVE_LOCAL_BUFFER (Complex, ctmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2992
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2993 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2994 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2995 octave_idx_type off1 = i * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2996 octave_idx_type off2 = (k - i - 1) * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2997
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2998 if (off1 == off2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2999 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3000
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3001 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3002 ctmp[j] = z[off1 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3003
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3004 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3005 z[off1 + j] = z[off2 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3006
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3007 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3008 z[off2 + j] = ctmp[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3009 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3010 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3011 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3012 else
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3013 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3014 ("eigs: error %d in zneupd", info2);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3015
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3016 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3017 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3018
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3019 octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3020 EigsComplexNonSymmetricFunc (EigsComplexFunc fun, octave_idx_type n,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3021 const std::string &_typ, Complex sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3022 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3023 octave_idx_type &info, ComplexMatrix &eig_vec,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3024 ComplexColumnVector &eig_val,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3025 ComplexColumnVector &cresid, std::ostream& os,
10361 b4f67ca318d8 eigs-base.cc: fix prototypes for arpack functions John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	3026 double tol, bool rvec, bool /* cholB */,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3027 int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3028 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3029 std::string typ (_typ);
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3030 bool have_sigma = (std::abs (sigma) ? true : false);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3031 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3032 octave_idx_type mode = 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3033 int err = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3034
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	3035 if (cresid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3036 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	3037 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3038 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3039 Array<double> rr (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3040 Array<double> ri (octave_rand::vector (n));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3041 cresid = ComplexColumnVector (n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3042 for (octave_idx_type i = 0; i < n; i++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3043 cresid(i) = Complex (rr(i),ri(i));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3044 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3045 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3046
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3047 if (n < 3)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3048 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3049 ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3050
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3051 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3052 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3053 p = k * 2 + 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3054
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3055 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3056 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3057
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3058 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3059 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3060 }
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3061
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3062 if (k <= 0 \|\| k >= n - 1)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3063 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3064 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1).\n"
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3065 " Use 'eig (full (A))' instead");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3066
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3067 if (p <= k \|\| p >= n)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3068 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3069 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3070
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3071 if (! have_sigma)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3072 {
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	3073 if (typ != "LM" && typ != "SM" && typ != "LA" && typ != "SA"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	3074 && typ != "BE" && typ != "LR" && typ != "SR" && typ != "LI"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	3075 && typ != "SI")
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3076 (*current_liboctave_error_handler) ("eigs: unrecognized sigma value");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3077
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3078 if (typ == "LA" \|\| typ == "SA" \|\| typ == "BE")
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3079 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3080 ("eigs: invalid sigma value for complex problem");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3081
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3082 if (typ == "SM")
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3083 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3084 typ = "LM";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3085 sigma = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3086 mode = 3;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3087 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3088 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3089 else if (! std::abs (sigma))
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3090 typ = "SM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3091 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3092 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3093 typ = "LM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3094 mode = 3;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3095 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3096
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3097 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3098 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3099
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3100 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3101 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3102 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3103 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3104 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3105 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3106 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3107 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3108 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3109 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3110 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3111 // ip(7) to ip(10) return values
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3112
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3113 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3114 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3115
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3116 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3117 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3118 octave_idx_type lwork = p * (3 * p + 5);
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3119
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3120 OCTAVE_LOCAL_BUFFER (Complex, v, n * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3121 OCTAVE_LOCAL_BUFFER (Complex, workl, lwork);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3122 OCTAVE_LOCAL_BUFFER (Complex, workd, 3 * n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3123 OCTAVE_LOCAL_BUFFER (double, rwork, p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3124 Complex *presid = cresid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3125
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3126 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3127 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3128 F77_FUNC (znaupd, ZNAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3129 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	3130 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3131 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3132 ipntr, workd, workl, lwork, rwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3133 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3134
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3135 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3136 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3137 ("eigs: unrecoverable exception encountered in znaupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3138
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	3139 if (disp > 0 && ! xisnan(workl[iptr(5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3140 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3141 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3142 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3143 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	3144 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	3145 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3146 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3147 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3148 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3149
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3150 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3151 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3152 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3153 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3154 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3155 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3156 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3157 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3158
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3159 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3160 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3161 Complex *ip2 = workd + iptr(0) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3162 ComplexColumnVector x(n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3163
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3164 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3165 x(i) = *ip2++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3166
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3167 ComplexColumnVector y = fun (x, err);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3168
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3169 if (err)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3170 return false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3171
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3172 ip2 = workd + iptr(1) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3173 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3174 *ip2++ = y(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3175 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3176 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3177 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3178 if (info < 0)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3179 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3180 ("eigs: error %d in dsaupd", info);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3181
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3182 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3183 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3184 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3185 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3186
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3187 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3188
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3189 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3190 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3191 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3192 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3193 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3194 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3195 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3196 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	3197 octave_idx_type *sel = s.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3198
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3199 eig_vec.resize (n, k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3200 Complex *z = eig_vec.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3201
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3202 eig_val.resize (k+1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3203 Complex *d = eig_val.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3204
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3205 OCTAVE_LOCAL_BUFFER (Complex, workev, 2 * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3206
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3207 F77_FUNC (zneupd, ZNEUPD)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3208 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, d, z, n, sigma, workev,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3209 F77_CONST_CHAR_ARG2 (&bmat, 1), n,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3210 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3211 k, tol, presid, p, v, n, iparam, ipntr, workd, workl, lwork, rwork, info2
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3212 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3213
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3214 if (f77_exception_encountered)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3215 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3216 ("eigs: unrecoverable exception encountered in zneupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3217
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3218 if (info2 == 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3219 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3220 octave_idx_type k2 = k / 2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3221 for (octave_idx_type i = 0; i < k2; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3222 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3223 Complex ctmp = d[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3224 d[i] = d[k - i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3225 d[k - i - 1] = ctmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3226 }
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3227 eig_val.resize (k);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3228
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3229 if (rvec)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3230 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3231 OCTAVE_LOCAL_BUFFER (Complex, ctmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3232
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3233 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3234 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3235 octave_idx_type off1 = i * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3236 octave_idx_type off2 = (k - i - 1) * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3237
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3238 if (off1 == off2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3239 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3240
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3241 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3242 ctmp[j] = z[off1 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3243
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3244 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3245 z[off1 + j] = z[off2 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3246
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3247 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3248 z[off2 + j] = ctmp[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3249 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3250 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3251 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3252 else
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20974 diff changeset	3253 (*current_liboctave_error_handler) ("eigs: error %d in zneupd", info2);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3254
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3255 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3256 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3257
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3258 #ifndef _MSC_VER
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3259 template octave_idx_type
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3260 lusolve (const SparseMatrix&, const SparseMatrix&, Matrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3261
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3262 template octave_idx_type
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3263 lusolve (const SparseComplexMatrix&, const SparseComplexMatrix&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3264 ComplexMatrix&);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3265
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3266 template octave_idx_type
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3267 lusolve (const Matrix&, const Matrix&, Matrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3268
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3269 template octave_idx_type
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3270 lusolve (const ComplexMatrix&, const ComplexMatrix&, ComplexMatrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3271
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3272 template ComplexMatrix
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3273 ltsolve (const SparseComplexMatrix&, const ColumnVector&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3274 const ComplexMatrix&);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3275
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3276 template Matrix
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3277 ltsolve (const SparseMatrix&, const ColumnVector&, const Matrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3278
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3279 template ComplexMatrix
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3280 ltsolve (const ComplexMatrix&, const ColumnVector&, const ComplexMatrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3281
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3282 template Matrix
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3283 ltsolve (const Matrix&, const ColumnVector&, const Matrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3284
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3285 template ComplexMatrix
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3286 utsolve (const SparseComplexMatrix&, const ColumnVector&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3287 const ComplexMatrix&);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3288
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3289 template Matrix
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3290 utsolve (const SparseMatrix&, const ColumnVector&, const Matrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3291
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3292 template ComplexMatrix
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3293 utsolve (const ComplexMatrix&, const ColumnVector&, const ComplexMatrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3294
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3295 template Matrix
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3296 utsolve (const Matrix&, const ColumnVector&, const Matrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3297 #endif
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3298
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3299 #endif

Mercurial > octave

annotate liboctave/numeric/eigs-base.cc @ 21149:7962dbca527f