octave: libinterp/corefcn/balance.cc annotate

annotate libinterp/corefcn/balance.cc @ 23807:336f89b6208b

Use character literals 'c' rather than string literals "c" when possible. Better performance when string constructor isn't required. * Figure.cc, __init_qt__.cc, files-dock-widget.cc, file-editor-tab.cc, file-editor.cc, octave-qscintilla.cc, main-window.cc, octave-dock-widget.cc, octave-qt-link.cc, parser.cc, webinfo.cc, resource-manager.cc, settings-dialog.cc, workspace-view.cc, __magick_read__.cc, balance.cc, debug.cc, dynamic-ld.cc, ft-text-renderer.cc, gl-render.cc, gl2ps-print.cc, graphics.cc, hook-fcn.h, input.cc, load-path.cc, load-save.cc, ls-hdf5.cc, oct-hist.cc, oct-stream.cc, pager.cc, pr-output.cc, qz.cc, symtab.cc, symtab.h, tril.cc, __delaunayn__.cc, __init_fltk__.cc, __voronoi__.cc, audioread.cc, ccolamd.cc, colamd.cc, convhulln.cc, ov-base-int.cc, ov-base-mat.cc, ov-base-scalar.cc, ov-base.cc, ov-bool-mat.cc, ov-cell.cc, ov-class.cc, ov-classdef.cc, ov-colon.cc, ov-complex.cc, ov-cx-mat.cc, ov-fcn-handle.cc, ov-fcn-inline.cc, ov-fcn.h, ov-flt-cx-mat.cc, ov-flt-re-mat.cc, ov-java.cc, ov-oncleanup.cc, ov-range.cc, ov-re-mat.cc, ov-re-sparse.cc, ov-str-mat.cc, ov-struct.cc, ov-usr-fcn.cc, ov.cc, octave.cc, bp-table.cc, jit-ir.cc, jit-ir.h, jit-typeinfo.cc, pt-funcall.cc, pt-idx.cc, pt-pr-code.cc, pt.h, Array.cc, CDiagMatrix.cc, CMatrix.cc, CNDArray.cc, CRowVector.cc, CSparse.cc, Range.cc, boolSparse.cc, dDiagMatrix.cc, dMatrix.cc, dNDArray.cc, dRowVector.cc, dSparse.cc, fCDiagMatrix.cc, fCMatrix.cc, fCNDArray.cc, fCRowVector.cc, fDiagMatrix.cc, fMatrix.cc, fNDArray.cc, fRowVector.cc, idx-vector.cc, intNDArray.cc, CollocWt.cc, DASPK.cc, DASRT.cc, DASSL.cc, LSODE.cc, oct-time.cc, cmd-hist.cc, kpse.cc, lo-array-errwarn.cc, lo-regexp.cc, lo-utils.cc, str-vec.cc, url-transfer.cc, main-cli.cc, main-gui.cc, mkoctfile.in.cc: Replace 1-character string literals "c" with the character literal 'c'.

author	Rik <rik@octave.org>
date	Fri, 28 Jul 2017 15:40:00 -0700
parents	c3075ae020e1
children	d69021d58a61

rev	line source
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	1 /*
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	2
23219 3ac9f9ecfae5 maint: Update copyright dates. John W. Eaton <jwe@octave.org> parents: 23083 diff changeset	3 Copyright (C) 1996-2017 John W. Eaton
11523 fd0a3ac60b0e update copyright notices John W. Eaton <jwe@octave.org> parents: 10846 diff changeset	4 Copyright (C) 2008-2009 Jaroslav Hajek
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	5
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	6 This file is part of Octave.
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	7
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	8 Octave is free software; you can redistribute it and/or modify it
22755 3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22407 diff changeset	9 under the terms of the GNU General Public License as published by
3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22407 diff changeset	10 the Free Software Foundation; either version 3 of the License, or
3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22407 diff changeset	11 (at your option) any later version.
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	12
22755 3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22407 diff changeset	13 Octave is distributed in the hope that it will be useful, but
3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22407 diff changeset	14 WITHOUT ANY WARRANTY; without even the implied warranty of
3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22407 diff changeset	15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22407 diff changeset	16 GNU General Public License for more details.
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	17
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe 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: 5823 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: 5823 diff changeset	20 <http://www.gnu.org/licenses/>.
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	21
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	22 */
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	23
3911 8389e78e67d4 [project @ 2002-04-28 02:15:38 by jwe] jwe parents: 3887 diff changeset	24 // Author: A. S. Hodel <scotte@eng.auburn.edu>
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	25
21724 aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef" John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	26 #if defined (HAVE_CONFIG_H)
21301 40de9f8f23a6 Use '#include "config.h"' rather than <config.h>. Rik <rik@octave.org> parents: 21268 diff changeset	27 # include "config.h"
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	28 #endif
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	29
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	30 #include <string>
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	31
21268 f08ae27289e4 better use of templates for balance classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	32 #include "CMatrix.h"
f08ae27289e4 better use of templates for balance classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	33 #include "aepbalance.h"
f08ae27289e4 better use of templates for balance classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	34 #include "dMatrix.h"
f08ae27289e4 better use of templates for balance classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	35 #include "fCMatrix.h"
f08ae27289e4 better use of templates for balance classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	36 #include "fMatrix.h"
f08ae27289e4 better use of templates for balance classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	37 #include "gepbalance.h"
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 3911 diff changeset	38 #include "quit.h"
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	39
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14846 diff changeset	40 #include "defun.h"
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	41 #include "error.h"
3181 3f6a813eb09e [project @ 1998-09-25 02:50:29 by jwe] jwe parents: 3179 diff changeset	42 #include "f77-fcn.h"
21100 e39e05d90788 Switch gripe_XXX to either err_XXX or warn_XXX naming scheme. Rik <rik@octave.org> parents: 21024 diff changeset	43 #include "errwarn.h"
20940 48b2ad5ee801 maint: Rename oct-obj.[cc\|h] to ovl.[cc\|h] for clarity. Rik <rik@octave.org> parents: 20918 diff changeset	44 #include "ovl.h"
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	45 #include "utils.h"
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	46
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14846 diff changeset	47 DEFUN (balance, args, nargout,
21966 112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	48 doc: /* -- texinfo --
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	49 @deftypefn {} {@var{AA} =} balance (@var{A})
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	50 @deftypefnx {} {@var{AA} =} balance (@var{A}, @var{opt})
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	51 @deftypefnx {} {[@var{DD}, @var{AA}] =} balance (@var{A}, @var{opt})
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	52 @deftypefnx {} {[@var{D}, @var{P}, @var{AA}] =} balance (@var{A}, @var{opt})
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	53 @deftypefnx {} {[@var{CC}, @var{DD}, @var{AA}, @var{BB}] =} balance (@var{A}, @var{B}, @var{opt})
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	54
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	55 Balance the matrix @var{A} to reduce numerical errors in future
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	56 calculations.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	57
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	58 Compute @code{@var{AA} = @var{DD} \ @var{A} * @var{DD}} in which @var{AA}
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	59 is a matrix whose row and column norms are roughly equal in magnitude, and
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	60 @code{@var{DD} = @var{P} * @var{D}}, in which @var{P} is a permutation
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	61 matrix and @var{D} is a diagonal matrix of powers of two. This allows the
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	62 equilibration to be computed without round-off. Results of eigenvalue
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	63 calculation are typically improved by balancing first.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	64
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	65 If two output values are requested, @code{balance} returns
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	66 the diagonal @var{D} and the permutation @var{P} separately as vectors.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	67 In this case, @code{@var{DD} = eye(n)(:,@var{P}) * diag (@var{D})}, where
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	68 @math{n} is the matrix size.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	69
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	70 If four output values are requested, compute @code{@var{AA} =
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	71 @var{CC}@var{A}@var{DD}} and @code{@var{BB} = @var{CC}@var{B}@var{DD}},
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	72 in which @var{AA} and @var{BB} have nonzero elements of approximately the
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	73 same magnitude and @var{CC} and @var{DD} are permuted diagonal matrices as
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	74 in @var{DD} for the algebraic eigenvalue problem.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	75
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	76 The eigenvalue balancing option @var{opt} may be one of:
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	77
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	78 @table @asis
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	79 @item @qcode{"noperm"}, @qcode{"S"}
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	80 Scale only; do not permute.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	81
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	82 @item @qcode{"noscal"}, @qcode{"P"}
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	83 Permute only; do not scale.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	84 @end table
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	85
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	86 Algebraic eigenvalue balancing uses standard @sc{lapack} routines.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	87
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	88 Generalized eigenvalue problem balancing uses Ward's algorithm
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	89 (SIAM Journal on Scientific and Statistical Computing, 1981).
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21724 diff changeset	90 @end deftypefn */)
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	91 {
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	92 int nargin = args.length ();
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	93
20909 03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	94 if (nargin < 1 \|\| nargin > 3 \|\| nargout < 0)
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20700 diff changeset	95 print_usage ();
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	96
20918 6f0bd96f93c0 maint: Use new C++ archetype in more files. Rik <rik@octave.org> parents: 20909 diff changeset	97 octave_value_list retval;
6f0bd96f93c0 maint: Use new C++ archetype in more files. Rik <rik@octave.org> parents: 20909 diff changeset	98
3181 3f6a813eb09e [project @ 1998-09-25 02:50:29 by jwe] jwe parents: 3179 diff changeset	99 // determine if it's AEP or GEP
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	100 bool AEPcase = nargin == 1 \|\| args(1).is_string ();
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	101
3181 3f6a813eb09e [project @ 1998-09-25 02:50:29 by jwe] jwe parents: 3179 diff changeset	102 // problem dimension
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 4628 diff changeset	103 octave_idx_type nn = args(0).rows ();
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	104
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	105 if (nn != args(0).columns ())
21110 3d0d84305600 Use err_square_matrix_required more widely. Rik <rik@octave.org> parents: 21100 diff changeset	106 err_square_matrix_required ("balance", "A");
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	107
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	108 bool isfloat = args(0).is_single_type ()
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	109 \|\| (! AEPcase && args(1).is_single_type ());
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	110
23581 c3075ae020e1 maint: Deprecate is_complex_type and replace with iscomplex. Rik <rik@octave.org> parents: 23220 diff changeset	111 bool complex_case = args(0).iscomplex ()
c3075ae020e1 maint: Deprecate is_complex_type and replace with iscomplex. Rik <rik@octave.org> parents: 23220 diff changeset	112 \|\| (! AEPcase && args(1).iscomplex ());
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	113
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	114 // Extract argument 1 parameter for both AEP and GEP.
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	115 Matrix aa;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	116 ComplexMatrix caa;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	117 FloatMatrix faa;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	118 FloatComplexMatrix fcaa;
3185 9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	119
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	120 if (isfloat)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	121 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	122 if (complex_case)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	123 fcaa = args(0).float_complex_matrix_value ();
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	124 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	125 faa = args(0).float_matrix_value ();
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	126 }
3185 9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	127 else
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	128 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	129 if (complex_case)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	130 caa = args(0).complex_matrix_value ();
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	131 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	132 aa = args(0).matrix_value ();
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	133 }
3185 9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	134
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	135 // Treat AEP/GEP cases.
3185 9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	136 if (AEPcase)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11553 diff changeset	137 {
3185 9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	138 // Algebraic eigenvalue problem.
18100 6a71e5030df5 Follow coding convention of defining and initializing only 1 variable per line in liboctinterp. Rik <rik@octave.org> parents: 17787 diff changeset	139 bool noperm = false;
6a71e5030df5 Follow coding convention of defining and initializing only 1 variable per line in liboctinterp. Rik <rik@octave.org> parents: 17787 diff changeset	140 bool noscal = false;
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	141 if (nargin > 1)
a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	142 {
a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	143 std::string a1s = args(1).string_value ();
a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	144 noperm = a1s == "noperm" \|\| a1s == "S";
a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	145 noscal = a1s == "noscal" \|\| a1s == "P";
a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	146 }
3185 9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	147
9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	148 // balance the AEP
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	149 if (isfloat)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	150 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	151 if (complex_case)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	152 {
22317 6ca3acf5fad8 move some new numeric classes to namespace octave::math John W. Eaton <jwe@octave.org> parents: 21966 diff changeset	153 octave::math::aepbalance<FloatComplexMatrix> result (fcaa, noperm, noscal);
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	154
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	155 if (nargout == 0 \|\| nargout == 1)
20884 f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files. José Luis García Pallero <jgpallero@gmail.com> parents: 20853 diff changeset	156 retval = ovl (result.balanced_matrix ());
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	157 else if (nargout == 2)
20909 03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	158 retval = ovl (result.balancing_matrix (),
03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	159 result.balanced_matrix ());
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	160 else
20909 03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	161 retval = ovl (result.scaling_vector (),
03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	162 result.permuting_vector (),
03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	163 result.balanced_matrix ());
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	164 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	165 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	166 {
22317 6ca3acf5fad8 move some new numeric classes to namespace octave::math John W. Eaton <jwe@octave.org> parents: 21966 diff changeset	167 octave::math::aepbalance<FloatMatrix> result (faa, noperm, noscal);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	168
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	169 if (nargout == 0 \|\| nargout == 1)
20884 f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files. José Luis García Pallero <jgpallero@gmail.com> parents: 20853 diff changeset	170 retval = ovl (result.balanced_matrix ());
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	171 else if (nargout == 2)
20909 03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	172 retval = ovl (result.balancing_matrix (),
03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	173 result.balanced_matrix ());
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	174 else
20909 03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	175 retval = ovl (result.scaling_vector (),
03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	176 result.permuting_vector (),
03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	177 result.balanced_matrix ());
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	178 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	179 }
3181 3f6a813eb09e [project @ 1998-09-25 02:50:29 by jwe] jwe parents: 3179 diff changeset	180 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	181 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	182 if (complex_case)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	183 {
22317 6ca3acf5fad8 move some new numeric classes to namespace octave::math John W. Eaton <jwe@octave.org> parents: 21966 diff changeset	184 octave::math::aepbalance<ComplexMatrix> result (caa, noperm, noscal);
3185 9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	185
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	186 if (nargout == 0 \|\| nargout == 1)
20884 f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files. José Luis García Pallero <jgpallero@gmail.com> parents: 20853 diff changeset	187 retval = ovl (result.balanced_matrix ());
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	188 else if (nargout == 2)
20909 03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	189 retval = ovl (result.balancing_matrix (),
03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	190 result.balanced_matrix ());
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	191 else
20909 03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	192 retval = ovl (result.scaling_vector (),
03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	193 result.permuting_vector (),
03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	194 result.balanced_matrix ());
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	195 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	196 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	197 {
22317 6ca3acf5fad8 move some new numeric classes to namespace octave::math John W. Eaton <jwe@octave.org> parents: 21966 diff changeset	198 octave::math::aepbalance<Matrix> result (aa, noperm, noscal);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	199
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	200 if (nargout == 0 \|\| nargout == 1)
20884 f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files. José Luis García Pallero <jgpallero@gmail.com> parents: 20853 diff changeset	201 retval = ovl (result.balanced_matrix ());
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	202 else if (nargout == 2)
20909 03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	203 retval = ovl (result.balancing_matrix (),
03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	204 result.balanced_matrix ());
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	205 else
20909 03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	206 retval = ovl (result.scaling_vector (),
03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	207 result.permuting_vector (),
03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20884 diff changeset	208 result.balanced_matrix ());
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	209 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	210 }
3181 3f6a813eb09e [project @ 1998-09-25 02:50:29 by jwe] jwe parents: 3179 diff changeset	211 }
3f6a813eb09e [project @ 1998-09-25 02:50:29 by jwe] jwe parents: 3179 diff changeset	212 else
3f6a813eb09e [project @ 1998-09-25 02:50:29 by jwe] jwe parents: 3179 diff changeset	213 {
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	214 std::string bal_job;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	215 if (nargout == 1)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	216 warning ("balance: used GEP, should have two output arguments");
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	217
3185 9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	218 // Generalized eigenvalue problem.
9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	219 if (nargin == 2)
23807 336f89b6208b Use character literals 'c' rather than string literals "c" when possible. Rik <rik@octave.org> parents: 23581 diff changeset	220 bal_job = 'B';
3185 9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	221 else
20700 68e3a747ca02 rename octave_value value extractors that accept error message args John W. Eaton <jwe@octave.org> parents: 20582 diff changeset	222 bal_job = args(2).xstring_value ("balance: OPT argument must be a string");
3185 9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	223
9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	224 if ((nn != args(1).columns ()) \|\| (nn != args(1).rows ()))
21100 e39e05d90788 Switch gripe_XXX to either err_XXX or warn_XXX naming scheme. Rik <rik@octave.org> parents: 21024 diff changeset	225 err_nonconformant ();
3185 9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	226
9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	227 Matrix bb;
9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	228 ComplexMatrix cbb;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	229 FloatMatrix fbb;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	230 FloatComplexMatrix fcbb;
3185 9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	231
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	232 if (isfloat)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	233 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	234 if (complex_case)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	235 fcbb = args(1).float_complex_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	236 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	237 fbb = args(1).float_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	238 }
3185 9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	239 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	240 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	241 if (complex_case)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	242 cbb = args(1).complex_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	243 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	244 bb = args(1).matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	245 }
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 3911 diff changeset	246
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	247 // balance the GEP
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	248 if (isfloat)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	249 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	250 if (complex_case)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	251 {
22317 6ca3acf5fad8 move some new numeric classes to namespace octave::math John W. Eaton <jwe@octave.org> parents: 21966 diff changeset	252 octave::math::gepbalance<FloatComplexMatrix> result (fcaa, fcbb, bal_job);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	253
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	254 switch (nargout)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	255 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	256 case 4:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	257 retval(3) = result.balanced_matrix2 ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	258 // fall through
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	259 case 3:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	260 retval(2) = result.balanced_matrix ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	261 retval(1) = result.balancing_matrix2 ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	262 retval(0) = result.balancing_matrix ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	263 break;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	264 case 2:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	265 retval(1) = result.balancing_matrix2 ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	266 // fall through
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	267 case 1:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	268 retval(0) = result.balancing_matrix ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	269 break;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	270 default:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	271 error ("balance: invalid number of output arguments");
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	272 break;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	273 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	274 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	275 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	276 {
22317 6ca3acf5fad8 move some new numeric classes to namespace octave::math John W. Eaton <jwe@octave.org> parents: 21966 diff changeset	277 octave::math::gepbalance<FloatMatrix> result (faa, fbb, bal_job);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	278
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	279 switch (nargout)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	280 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	281 case 4:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	282 retval(3) = result.balanced_matrix2 ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	283 // fall through
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	284 case 3:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	285 retval(2) = result.balanced_matrix ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	286 retval(1) = result.balancing_matrix2 ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	287 retval(0) = result.balancing_matrix ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	288 break;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	289 case 2:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	290 retval(1) = result.balancing_matrix2 ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	291 // fall through
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	292 case 1:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	293 retval(0) = result.balancing_matrix ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	294 break;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	295 default:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	296 error ("balance: invalid number of output arguments");
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	297 break;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	298 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	299 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	300 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	301 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	302 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	303 if (complex_case)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	304 {
22317 6ca3acf5fad8 move some new numeric classes to namespace octave::math John W. Eaton <jwe@octave.org> parents: 21966 diff changeset	305 octave::math::gepbalance<ComplexMatrix> result (caa, cbb, bal_job);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	306
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	307 switch (nargout)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	308 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	309 case 4:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	310 retval(3) = result.balanced_matrix2 ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	311 // fall through
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	312 case 3:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	313 retval(2) = result.balanced_matrix ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	314 retval(1) = result.balancing_matrix2 ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	315 retval(0) = result.balancing_matrix ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	316 break;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	317 case 2:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	318 retval(1) = result.balancing_matrix2 ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	319 // fall through
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	320 case 1:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	321 retval(0) = result.balancing_matrix ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	322 break;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	323 default:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	324 error ("balance: invalid number of output arguments");
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	325 break;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	326 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	327 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	328 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	329 {
22317 6ca3acf5fad8 move some new numeric classes to namespace octave::math John W. Eaton <jwe@octave.org> parents: 21966 diff changeset	330 octave::math::gepbalance<Matrix> result (aa, bb, bal_job);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7482 diff changeset	331
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	332 switch (nargout)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	333 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	334 case 4:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	335 retval(3) = result.balanced_matrix2 ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	336 // fall through
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	337 case 3:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	338 retval(2) = result.balanced_matrix ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	339 retval(1) = result.balancing_matrix2 ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	340 retval(0) = result.balancing_matrix ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	341 break;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	342 case 2:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	343 retval(1) = result.balancing_matrix2 ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	344 // fall through
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	345 case 1:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	346 retval(0) = result.balancing_matrix ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	347 break;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	348 default:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	349 error ("balance: invalid number of output arguments");
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	350 break;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	351 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	352 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9821 diff changeset	353 }
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	354 }
3185 9580887dd160 [project @ 1998-09-26 02:45:55 by jwe] jwe parents: 3181 diff changeset	355
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	356 return retval;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	357 }

Mercurial > octave

annotate libinterp/corefcn/balance.cc @ 23807:336f89b6208b