octave-antonio: src/DLD-FUNCTIONS/symbfact.cc annotate

annotate src/DLD-FUNCTIONS/symbfact.cc @ 10840:89f4d7e294cc

Grammarcheck .cc files

author	Rik <octave@nomad.inbox5.com>
date	Sat, 31 Jul 2010 11:18:11 -0700
parents	d0ce5e973937
children	fd0a3ac60b0e

rev	line source
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	1 /*
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	2
8920 eb63fbe60fab update copyright notices John W. Eaton <jwe@octave.org> parents: 8377 diff changeset	3 Copyright (C) 2005, 2006, 2007, 2008 David Bateman
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	4 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Andy Adler
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	5
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	6 This file is part of Octave.
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	7
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	8 Octave is free software; you can redistribute it and/or modify it
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	9 under the terms of the GNU General Public License as published by the
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	10 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	11 option) any later version.
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	12
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	13 Octave is distributed in the hope that it will be useful, but WITHOUT
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	16 for more details.
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	17
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	18 You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	19 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	20 <http://www.gnu.org/licenses/>.
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	21
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	22 */
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	23
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	24 #ifdef HAVE_CONFIG_H
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	25 #include <config.h>
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	26 #endif
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	27
7515 f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7036 diff changeset	28 #include "SparseCmplxCHOL.h"
f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7036 diff changeset	29 #include "SparsedbleCHOL.h"
f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7036 diff changeset	30 #include "oct-spparms.h"
f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7036 diff changeset	31 #include "sparse-util.h"
8377 25bc2d31e1bf improve OCTAVE_LOCAL_BUFFER Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	32 #include "oct-locbuf.h"
7515 f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7036 diff changeset	33
f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7036 diff changeset	34 #include "ov-re-sparse.h"
f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7036 diff changeset	35 #include "ov-cx-sparse.h"
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	36 #include "defun-dld.h"
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	37 #include "error.h"
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	38 #include "gripes.h"
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	39 #include "oct-obj.h"
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	40 #include "utils.h"
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	41
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	42 DEFUN_DLD (symbfact, args, nargout,
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	43 "-- texinfo --\n\
6547 4fb053f24fd6 [project @ 2007-04-19 21:47:40 by jwe] jwe parents: 5893 diff changeset	44 @deftypefn {Loadable Function} {[@var{count}, @var{h}, @var{parent}, @var{post}, @var{r}] =} symbfact (@var{s}, @var{typ}, @var{mode})\n\
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	45 \n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	46 Performs a symbolic factorization analysis on the sparse matrix @var{s}.\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	47 Where\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	48 \n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	49 @table @asis\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	50 @item @var{s}\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	51 @var{s} is a complex or real sparse matrix.\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	52 \n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	53 @item @var{typ}\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	54 Is the type of the factorization and can be one of\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	55 \n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	56 @table @code\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	57 @item sym\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	58 Factorize @var{s}. This is the default.\n\
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	59 \n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	60 @item col\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	61 Factorize @code{@var{s}' * @var{s}}.\n\
10840 89f4d7e294cc Grammarcheck .cc files Rik <octave@nomad.inbox5.com> parents: 10155 diff changeset	62 \n\
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	63 @item row\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	64 Factorize @code{@var{s} * @var{s}'}.\n\
10840 89f4d7e294cc Grammarcheck .cc files Rik <octave@nomad.inbox5.com> parents: 10155 diff changeset	65 \n\
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	66 @item lo\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	67 Factorize @code{@var{s}'}\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	68 @end table\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	69 \n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	70 @item @var{mode}\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	71 The default is to return the Cholesky factorization for @var{r}, and if\n\
7001 8b0cfeb06365 [project @ 2007-10-10 18:02:59 by jwe] jwe parents: 6547 diff changeset	72 @var{mode} is 'L', the conjugate transpose of the Cholesky factorization\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	73 is returned. The conjugate transpose version is faster and uses less\n\
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	74 memory, but returns the same values for @var{count}, @var{h}, @var{parent}\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	75 and @var{post} outputs.\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	76 @end table\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	77 \n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	78 The output variables are\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	79 \n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	80 @table @asis\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	81 @item @var{count}\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	82 The row counts of the Cholesky factorization as determined by @var{typ}.\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	83 \n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	84 @item @var{h}\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	85 The height of the elimination tree.\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	86 \n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	87 @item @var{parent}\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	88 The elimination tree itself.\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	89 \n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	90 @item @var{post}\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	91 A sparse boolean matrix whose structure is that of the Cholesky\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	92 factorization as determined by @var{typ}.\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	93 @end table\n\
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	94 @end deftypefn")
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	95 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	96 octave_value_list retval;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	97 int nargin = args.length ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	98
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	99 if (nargin < 1 \|\| nargin > 3 \|\| nargout > 5)
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	100 {
5823 080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe] jwe parents: 5760 diff changeset	101 print_usage ();
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	102 return retval;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	103 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	104
5512 7c8767d0ffc0 [project @ 2005-10-27 02:20:17 by jwe] jwe parents: 5506 diff changeset	105 #ifdef HAVE_CHOLMOD
7c8767d0ffc0 [project @ 2005-10-27 02:20:17 by jwe] jwe parents: 5506 diff changeset	106
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	107 cholmod_common Common;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	108 cholmod_common *cm = &Common;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	109 CHOLMOD_NAME(start) (cm);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	110
5893 d73ffe42f2c8 [project @ 2006-07-16 07:48:19 by jwe] jwe parents: 5823 diff changeset	111 double spu = octave_sparse_params::get_key ("spumoni");
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	112 if (spu == 0.)
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	113 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	114 cm->print = -1;
7520 b166043585a8 use 0 instead of NULL John W. Eaton <jwe@octave.org> parents: 7515 diff changeset	115 cm->print_function = 0;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	116 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	117 else
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	118 {
5760 8d7162924bd3 [project @ 2006-04-14 04:01:37 by jwe] jwe parents: 5717 diff changeset	119 cm->print = static_cast<int> (spu) + 2;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	120 cm->print_function =&SparseCholPrint;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	121 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	122
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	123 cm->error_handler = &SparseCholError;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	124 cm->complex_divide = CHOLMOD_NAME(divcomplex);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	125 cm->hypotenuse = CHOLMOD_NAME(hypot);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	126
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	127 double dummy;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	128 cholmod_sparse Astore;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	129 cholmod_sparse *A = &Astore;
5527 ce71ed4c6da6 [project @ 2005-11-01 22:15:49 by jwe] jwe parents: 5512 diff changeset	130 A->packed = true;
ce71ed4c6da6 [project @ 2005-11-01 22:15:49 by jwe] jwe parents: 5512 diff changeset	131 A->sorted = true;
7520 b166043585a8 use 0 instead of NULL John W. Eaton <jwe@octave.org> parents: 7515 diff changeset	132 A->nz = 0;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	133 #ifdef IDX_TYPE_LONG
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	134 A->itype = CHOLMOD_LONG;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	135 #else
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	136 A->itype = CHOLMOD_INT;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	137 #endif
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	138 A->dtype = CHOLMOD_DOUBLE;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	139 A->stype = 1;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	140 A->x = &dummy;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	141
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	142 if (args(0).is_real_type ())
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	143 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	144 const SparseMatrix a = args(0).sparse_matrix_value();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	145 A->nrow = a.rows();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	146 A->ncol = a.cols();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	147 A->p = a.cidx();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	148 A->i = a.ridx();
5604 2857357f9d3c [project @ 2006-01-31 18:22:59 by jwe] jwe parents: 5534 diff changeset	149 A->nzmax = a.nnz();
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	150 A->xtype = CHOLMOD_REAL;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	151
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	152 if (a.rows() > 0 && a.cols() > 0)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	153 A->x = a.data();
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	154 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	155 else if (args(0).is_complex_type ())
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	156 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	157 const SparseComplexMatrix a = args(0).sparse_complex_matrix_value();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	158 A->nrow = a.rows();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	159 A->ncol = a.cols();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	160 A->p = a.cidx();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	161 A->i = a.ridx();
5604 2857357f9d3c [project @ 2006-01-31 18:22:59 by jwe] jwe parents: 5534 diff changeset	162 A->nzmax = a.nnz();
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	163 A->xtype = CHOLMOD_COMPLEX;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	164
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	165 if (a.rows() > 0 && a.cols() > 0)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	166 A->x = a.data();
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	167 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	168 else
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7520 diff changeset	169 gripe_wrong_type_arg ("symbfact", args(0));
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	170
5527 ce71ed4c6da6 [project @ 2005-11-01 22:15:49 by jwe] jwe parents: 5512 diff changeset	171 octave_idx_type coletree = false;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	172 octave_idx_type n = A->nrow;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	173
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	174 if (nargin > 1)
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	175 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	176 char ch;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	177 std::string str = args(1).string_value();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	178 ch = tolower (str.c_str()[0]);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	179 if (ch == 'r')
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	180 A->stype = 0;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	181 else if (ch == 'c')
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	182 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	183 n = A->ncol;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	184 coletree = true;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	185 A->stype = 0;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	186 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	187 else if (ch == 's')
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	188 A->stype = 1;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	189 else if (ch == 's')
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	190 A->stype = -1;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	191 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	192 error ("Unrecognized typ in symbolic factorization");
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	193 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	194
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	195 if (A->stype && A->nrow != A->ncol)
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	196 error ("Matrix must be square");
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	197
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	198 if (!error_state)
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	199 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	200 OCTAVE_LOCAL_BUFFER (octave_idx_type, Parent, n);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	201 OCTAVE_LOCAL_BUFFER (octave_idx_type, Post, n);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	202 OCTAVE_LOCAL_BUFFER (octave_idx_type, ColCount, n);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	203 OCTAVE_LOCAL_BUFFER (octave_idx_type, First, n);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	204 OCTAVE_LOCAL_BUFFER (octave_idx_type, Level, n);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	205
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	206 cholmod_sparse *F = CHOLMOD_NAME(transpose) (A, 0, cm);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	207 cholmod_sparse Aup, Alo;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	208
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	209 if (A->stype == 1 \|\| coletree)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	210 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	211 Aup = A ;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	212 Alo = F ;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	213 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	214 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	215 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	216 Aup = F ;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	217 Alo = A ;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	218 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	219
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	220 CHOLMOD_NAME(etree) (Aup, Parent, cm);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	221
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	222 if (cm->status < CHOLMOD_OK)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	223 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	224 error("matrix corrupted");
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	225 goto symbfact_error;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	226 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	227
7520 b166043585a8 use 0 instead of NULL John W. Eaton <jwe@octave.org> parents: 7515 diff changeset	228 if (CHOLMOD_NAME(postorder) (Parent, n, 0, Post, cm) != n)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	229 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	230 error("postorder failed");
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	231 goto symbfact_error;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	232 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	233
7520 b166043585a8 use 0 instead of NULL John W. Eaton <jwe@octave.org> parents: 7515 diff changeset	234 CHOLMOD_NAME(rowcolcounts) (Alo, 0, 0, Parent, Post, 0,
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	235 ColCount, First, Level, cm);
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	236
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	237 if (cm->status < CHOLMOD_OK)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	238 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	239 error("matrix corrupted");
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	240 goto symbfact_error;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	241 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	242
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	243 if (nargout > 4)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	244 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	245 cholmod_sparse A1, A2;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	246
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	247 if (A->stype == 1)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	248 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	249 A1 = A;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	250 A2 = 0;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	251 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	252 else if (A->stype == -1)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	253 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	254 A1 = F;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	255 A2 = 0;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	256 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	257 else if (coletree)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	258 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	259 A1 = F;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	260 A2 = A;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	261 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	262 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	263 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	264 A1 = A;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	265 A2 = F;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	266 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	267
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	268 // count the total number of entries in L
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	269 octave_idx_type lnz = 0 ;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	270 for (octave_idx_type j = 0 ; j < n ; j++)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	271 lnz += ColCount [j] ;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	272
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	273
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	274 // allocate the output matrix L (pattern-only)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	275 SparseBoolMatrix L (n, n, lnz);
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	276
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	277 // initialize column pointers
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	278 lnz = 0;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	279 for (octave_idx_type j = 0 ; j < n ; j++)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	280 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	281 L.xcidx(j) = lnz;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	282 lnz += ColCount [j];
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	283 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	284 L.xcidx(n) = lnz;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	285
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	286
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	287 /* create a copy of the column pointers */
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	288 octave_idx_type *W = First;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	289 for (octave_idx_type j = 0 ; j < n ; j++)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	290 W [j] = L.xcidx(j);
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	291
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	292 // get workspace for computing one row of L
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	293 cholmod_sparse *R = cholmod_allocate_sparse (n, 1, n, false, true,
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	294 0, CHOLMOD_PATTERN, cm);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	295 octave_idx_type Rp = static_cast<octave_idx_type >(R->p);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	296 octave_idx_type Ri = static_cast<octave_idx_type >(R->i);
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	297
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	298 // compute L one row at a time
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	299 for (octave_idx_type k = 0 ; k < n ; k++)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	300 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	301 // get the kth row of L and store in the columns of L
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	302 CHOLMOD_NAME (row_subtree) (A1, A2, k, Parent, R, cm) ;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	303 for (octave_idx_type p = 0 ; p < Rp [1] ; p++)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	304 L.xridx (W [Ri [p]]++) = k ;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	305
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	306 // add the diagonal entry
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	307 L.xridx (W [k]++) = k ;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	308 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	309
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	310 // free workspace
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	311 cholmod_free_sparse (&R, cm) ;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	312
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	313
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	314 // transpose L to get R, or leave as is
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	315 if (nargin < 3)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	316 L = L.transpose ();
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	317
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	318 // fill numerical values of L with one's
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	319 for (octave_idx_type p = 0 ; p < lnz ; p++)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	320 L.xdata(p) = true;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	321
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	322 retval(4) = L;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	323 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	324
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	325 ColumnVector tmp (n);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	326 if (nargout > 3)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	327 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	328 for (octave_idx_type i = 0; i < n; i++)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	329 tmp(i) = Post[i] + 1;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	330 retval(3) = tmp;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	331 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	332
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	333 if (nargout > 2)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	334 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	335 for (octave_idx_type i = 0; i < n; i++)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	336 tmp(i) = Parent[i] + 1;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	337 retval(2) = tmp;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	338 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	339
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	340 if (nargout > 1)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	341 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	342 /* compute the elimination tree height */
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	343 octave_idx_type height = 0 ;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	344 for (int i = 0 ; i < n ; i++)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	345 height = (height > Level[i] ? height : Level[i]);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	346 height++ ;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	347 retval(1) = static_cast<double> (height);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	348 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	349
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	350 for (octave_idx_type i = 0; i < n; i++)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	351 tmp(i) = ColCount[i];
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	352 retval(0) = tmp;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	353 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	354
5512 7c8767d0ffc0 [project @ 2005-10-27 02:20:17 by jwe] jwe parents: 5506 diff changeset	355 symbfact_error:
7c8767d0ffc0 [project @ 2005-10-27 02:20:17 by jwe] jwe parents: 5506 diff changeset	356 #else
7c8767d0ffc0 [project @ 2005-10-27 02:20:17 by jwe] jwe parents: 5506 diff changeset	357 error ("symbfact: not available in this version of Octave");
7c8767d0ffc0 [project @ 2005-10-27 02:20:17 by jwe] jwe parents: 5506 diff changeset	358 #endif
7c8767d0ffc0 [project @ 2005-10-27 02:20:17 by jwe] jwe parents: 5506 diff changeset	359
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	360 return retval;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: diff changeset	361 }

Mercurial > octave-antonio

annotate src/DLD-FUNCTIONS/symbfact.cc @ 10840:89f4d7e294cc