octave-nkf: liboctave/dbleAEPBAL.cc annotate

annotate liboctave/dbleAEPBAL.cc @ 14684:23149db50468 stable

3.6.2-rc1 release candidate * configure.ac (AC_INIT): Version is now 3.6.2-rc1. (OCTAVE_RELEASE_DATE): Now 2012-05-24.

author	John W. Eaton <jwe@octave.org>
date	Thu, 24 May 2012 12:19:04 -0400
parents	72c96de7a403
children

rev	line source
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	1 /*
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	2
14138 72c96de7a403 maint: update copyright notices for 2012 John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3 Copyright (C) 1994-2012 John W. Eaton
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	4 Copyright (C) 2008 Jaroslav Hajek
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	5
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	6 This file is part of Octave.
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	7
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	8 Octave is free software; you can redistribute it and/or modify it
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe 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: 5307 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: 5307 diff changeset	11 option) any later version.
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	12
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	13 Octave is distributed in the hope that it will be useful, but WITHOUT
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	16 for more details.
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	17
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 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: 5307 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: 5307 diff changeset	20 <http://www.gnu.org/licenses/>.
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	21
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	22 */
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	23
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	24 #ifdef HAVE_CONFIG_H
1192 b6360f2d4fa6 [project @ 1995-03-30 21:38:35 by jwe] jwe parents: 1011 diff changeset	25 #include <config.h>
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	26 #endif
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	27
1730 a744f4d0ba59 [project @ 1996-01-09 12:16:29 by jwe] jwe parents: 1360 diff changeset	28 #include <string>
a744f4d0ba59 [project @ 1996-01-09 12:16:29 by jwe] jwe parents: 1360 diff changeset	29
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	30 #include "dbleAEPBAL.h"
1847 2ffe49eb95a5 [project @ 1996-02-03 12:47:55 by jwe] jwe parents: 1730 diff changeset	31 #include "f77-fcn.h"
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	32
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	33 extern "C"
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	34 {
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	35 F77_RET_T
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	36 F77_FUNC (dgebal, DGEBAL) (F77_CONST_CHAR_ARG_DECL,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10314 diff changeset	37 const octave_idx_type&, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10314 diff changeset	38 const octave_idx_type&, octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	39 octave_idx_type&, double*, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	40 F77_CHAR_ARG_LEN_DECL);
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	41
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	42 F77_RET_T
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	43 F77_FUNC (dgebak, DGEBAK) (F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	44 F77_CONST_CHAR_ARG_DECL,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10314 diff changeset	45 const octave_idx_type&, const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10314 diff changeset	46 const octave_idx_type&, const double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10314 diff changeset	47 const octave_idx_type&, double*,
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	48 const octave_idx_type&, octave_idx_type&
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	49 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	50 F77_CHAR_ARG_LEN_DECL);
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	51 }
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	52
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	53 AEPBALANCE::AEPBALANCE (const Matrix& a, bool noperm, bool noscal)
a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	54 : base_aepbal<Matrix, ColumnVector> ()
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	55 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	56 octave_idx_type n = a.cols ();
1730 a744f4d0ba59 [project @ 1996-01-09 12:16:29 by jwe] jwe parents: 1360 diff changeset	57
1933 333923894848 [project @ 1996-02-12 03:07:39 by jwe] jwe parents: 1882 diff changeset	58 if (a.rows () != n)
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	59 {
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	60 (*current_liboctave_error_handler) ("AEPBALANCE requires square matrix");
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	61 return;
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	62 }
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	63
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	64 octave_idx_type info;
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	65
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	66 scale = ColumnVector (n);
1933 333923894848 [project @ 1996-02-12 03:07:39 by jwe] jwe parents: 1882 diff changeset	67 double *pscale = scale.fortran_vec ();
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	68
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	69 balanced_mat = a;
1933 333923894848 [project @ 1996-02-12 03:07:39 by jwe] jwe parents: 1882 diff changeset	70 double *p_balanced_mat = balanced_mat.fortran_vec ();
1730 a744f4d0ba59 [project @ 1996-01-09 12:16:29 by jwe] jwe parents: 1360 diff changeset	71
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	72 job = noperm ? (noscal ? 'N' : 'S') : (noscal ? 'P' : 'B');
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	73
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	74 F77_XFCN (dgebal, DGEBAL, (F77_CONST_CHAR_ARG2 (&job, 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	75 n, p_balanced_mat, n, ilo, ihi, pscale, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	76 F77_CHAR_ARG_LEN (1)));
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	77 }
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	78
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	79 Matrix
a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	80 AEPBALANCE::balancing_matrix (void) const
a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	81 {
a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	82 octave_idx_type n = balanced_mat.rows ();
a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	83 Matrix balancing_mat (n, n, 0.0);
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	84 for (octave_idx_type i = 0; i < n; i++)
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	85 balancing_mat.elem (i ,i) = 1.0;
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	86
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	87 double *p_balancing_mat = balancing_mat.fortran_vec ();
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	88 const double *pscale = scale.fortran_vec ();
a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	89
a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	90 octave_idx_type info;
1933 333923894848 [project @ 1996-02-12 03:07:39 by jwe] jwe parents: 1882 diff changeset	91
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	92 char side = 'R';
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	93
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	94 F77_XFCN (dgebak, DGEBAK, (F77_CONST_CHAR_ARG2 (&job, 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	95 F77_CONST_CHAR_ARG2 (&side, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	96 n, ilo, ihi, pscale, n,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	97 p_balancing_mat, n, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	98 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	99 F77_CHAR_ARG_LEN (1)));
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	100
8386 a5e080076778 make balance more Matlab-compatible Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	101 return balancing_mat;
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	102 }

Mercurial > hg > octave-nkf

annotate liboctave/dbleAEPBAL.cc @ 14684:23149db50468 stable