octave-nkf: liboctave/CmplxCHOL.cc annotate

annotate liboctave/CmplxCHOL.cc @ 8377:25bc2d31e1bf

improve OCTAVE_LOCAL_BUFFER

author	Jaroslav Hajek <highegg@gmail.com>
date	Wed, 29 Oct 2008 16:52:10 +0100
parents	7c9ba697a479
children	d66c9b6e506a

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
7017 a1dbe9d80eee [project @ 2007-10-12 21:27:11 by jwe] jwe parents: 7016 diff changeset	3 Copyright (C) 1994, 1995, 1996, 1997, 2002, 2003, 2004, 2005, 2007
a1dbe9d80eee [project @ 2007-10-12 21:27:11 by jwe] jwe parents: 7016 diff changeset	4 John W. Eaton
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: 6486 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: 6486 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: 6486 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: 6486 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
7554 40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	24 // updating/downdating by Jaroslav Hajek 2008
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	25
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	26 #ifdef HAVE_CONFIG_H
1192 b6360f2d4fa6 [project @ 1995-03-30 21:38:35 by jwe] jwe parents: 1011 diff changeset	27 #include <config.h>
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	28 #endif
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	29
7554 40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	30 #include <vector>
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	31
6486 e978a9233cf6 [project @ 2007-04-04 15:16:46 by jwe] jwe parents: 5340 diff changeset	32 #include "dMatrix.h"
e978a9233cf6 [project @ 2007-04-04 15:16:46 by jwe] jwe parents: 5340 diff changeset	33 #include "dRowVector.h"
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	34 #include "CmplxCHOL.h"
1847 2ffe49eb95a5 [project @ 1996-02-03 12:47:55 by jwe] jwe parents: 1368 diff changeset	35 #include "f77-fcn.h"
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	36 #include "lo-error.h"
8377 25bc2d31e1bf improve OCTAVE_LOCAL_BUFFER Jaroslav Hajek <highegg@gmail.com> parents: 7725 diff changeset	37 #include "oct-locbuf.h"
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	38
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	39 extern "C"
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	40 {
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	41 F77_RET_T
5340 15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	42 F77_FUNC (zpotrf, ZPOTRF) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	43 Complex*, const octave_idx_type&, octave_idx_type&
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	44 F77_CHAR_ARG_LEN_DECL);
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	45 F77_RET_T
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	46 F77_FUNC (zpotri, ZPOTRI) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	47 Complex*, const octave_idx_type&, octave_idx_type&
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	48 F77_CHAR_ARG_LEN_DECL);
6486 e978a9233cf6 [project @ 2007-04-04 15:16:46 by jwe] jwe parents: 5340 diff changeset	49
e978a9233cf6 [project @ 2007-04-04 15:16:46 by jwe] jwe parents: 5340 diff changeset	50 F77_RET_T
e978a9233cf6 [project @ 2007-04-04 15:16:46 by jwe] jwe parents: 5340 diff changeset	51 F77_FUNC (zpocon, ZPOCON) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
e978a9233cf6 [project @ 2007-04-04 15:16:46 by jwe] jwe parents: 5340 diff changeset	52 Complex*, const octave_idx_type&, const double&,
e978a9233cf6 [project @ 2007-04-04 15:16:46 by jwe] jwe parents: 5340 diff changeset	53 double&, Complex, double,
e978a9233cf6 [project @ 2007-04-04 15:16:46 by jwe] jwe parents: 5340 diff changeset	54 octave_idx_type& F77_CHAR_ARG_LEN_DECL);
7554 40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	55 F77_RET_T
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	56 F77_FUNC (zch1up, ZCH1UP) (const octave_idx_type&, Complex, Complex, double*);
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	57
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	58 F77_RET_T
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	59 F77_FUNC (zch1dn, ZCH1DN) (const octave_idx_type&, Complex, Complex, double*,
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	60 octave_idx_type&);
7700 efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	61
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	62 F77_RET_T
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	63 F77_FUNC (zqrshc, ZQRSHC) (const octave_idx_type&, const octave_idx_type&, const octave_idx_type&,
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	64 Complex, Complex, const octave_idx_type&, const octave_idx_type&);
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	65
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	66 F77_RET_T
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	67 F77_FUNC (zchinx, ZCHINX) (const octave_idx_type&, const Complex, Complex, const octave_idx_type&,
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	68 const Complex*, octave_idx_type&);
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	69
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	70 F77_RET_T
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	71 F77_FUNC (zchdex, ZCHDEX) (const octave_idx_type&, const Complex, Complex, const octave_idx_type&);
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	72 }
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	73
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	74 octave_idx_type
6486 e978a9233cf6 [project @ 2007-04-04 15:16:46 by jwe] jwe parents: 5340 diff changeset	75 ComplexCHOL::init (const ComplexMatrix& a, bool calc_cond)
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	76 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	77 octave_idx_type a_nr = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	78 octave_idx_type a_nc = a.cols ();
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	79
1944 8cb4d3008c76 [project @ 1996-02-14 00:45:04 by jwe] jwe parents: 1882 diff changeset	80 if (a_nr != a_nc)
8cb4d3008c76 [project @ 1996-02-14 00:45:04 by jwe] jwe parents: 1882 diff changeset	81 {
8cb4d3008c76 [project @ 1996-02-14 00:45:04 by jwe] jwe parents: 1882 diff changeset	82 (*current_liboctave_error_handler)
8cb4d3008c76 [project @ 1996-02-14 00:45:04 by jwe] jwe parents: 1882 diff changeset	83 ("ComplexCHOL requires square matrix");
8cb4d3008c76 [project @ 1996-02-14 00:45:04 by jwe] jwe parents: 1882 diff changeset	84 return -1;
8cb4d3008c76 [project @ 1996-02-14 00:45:04 by jwe] jwe parents: 1882 diff changeset	85 }
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	86
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	87 octave_idx_type n = a_nc;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	88 octave_idx_type info;
1944 8cb4d3008c76 [project @ 1996-02-14 00:45:04 by jwe] jwe parents: 1882 diff changeset	89
8cb4d3008c76 [project @ 1996-02-14 00:45:04 by jwe] jwe parents: 1882 diff changeset	90 chol_mat = a;
8cb4d3008c76 [project @ 1996-02-14 00:45:04 by jwe] jwe parents: 1882 diff changeset	91 Complex *h = chol_mat.fortran_vec ();
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	92
6486 e978a9233cf6 [project @ 2007-04-04 15:16:46 by jwe] jwe parents: 5340 diff changeset	93 // Calculate the norm of the matrix, for later use.
e978a9233cf6 [project @ 2007-04-04 15:16:46 by jwe] jwe parents: 5340 diff changeset	94 double anorm = 0;
e978a9233cf6 [project @ 2007-04-04 15:16:46 by jwe] jwe parents: 5340 diff changeset	95 if (calc_cond)
e978a9233cf6 [project @ 2007-04-04 15:16:46 by jwe] jwe parents: 5340 diff changeset	96 anorm = chol_mat.abs().sum().row(static_cast<octave_idx_type>(0)).max();
e978a9233cf6 [project @ 2007-04-04 15:16:46 by jwe] jwe parents: 5340 diff changeset	97
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	98 F77_XFCN (zpotrf, ZPOTRF, (F77_CONST_CHAR_ARG2 ("U", 1), n, h, n, info
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	99 F77_CHAR_ARG_LEN (1)));
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	100
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	101 xrcond = 0.0;
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	102 if (info != 0)
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	103 info = -1;
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	104 else if (calc_cond)
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	105 {
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	106 octave_idx_type zpocon_info = 0;
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	107
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	108 // Now calculate the condition number for non-singular matrix.
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	109 Array<Complex> z (2*n);
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	110 Complex *pz = z.fortran_vec ();
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	111 Array<double> rz (n);
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	112 double *prz = rz.fortran_vec ();
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	113 F77_XFCN (zpocon, ZPOCON, (F77_CONST_CHAR_ARG2 ("U", 1), n, h,
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	114 n, anorm, xrcond, pz, prz, zpocon_info
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	115 F77_CHAR_ARG_LEN (1)));
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	116
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	117 if (zpocon_info != 0)
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	118 info = -1;
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	119 }
1944 8cb4d3008c76 [project @ 1996-02-14 00:45:04 by jwe] jwe parents: 1882 diff changeset	120 else
8cb4d3008c76 [project @ 1996-02-14 00:45:04 by jwe] jwe parents: 1882 diff changeset	121 {
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	122 // If someone thinks of a more graceful way of doing this (or
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	123 // faster for that matter :-)), please let me know!
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	124
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	125 if (n > 1)
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	126 for (octave_idx_type j = 0; j < a_nc; j++)
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	127 for (octave_idx_type i = j+1; i < a_nr; i++)
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	128 chol_mat.xelem (i, j) = 0.0;
1944 8cb4d3008c76 [project @ 1996-02-14 00:45:04 by jwe] jwe parents: 1882 diff changeset	129 }
8cb4d3008c76 [project @ 1996-02-14 00:45:04 by jwe] jwe parents: 1882 diff changeset	130
8cb4d3008c76 [project @ 1996-02-14 00:45:04 by jwe] jwe parents: 1882 diff changeset	131 return info;
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	132 }
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	133
5340 15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	134 static ComplexMatrix
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	135 chol2inv_internal (const ComplexMatrix& r)
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	136 {
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	137 ComplexMatrix retval;
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	138
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	139 octave_idx_type r_nr = r.rows ();
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	140 octave_idx_type r_nc = r.cols ();
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	141
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	142 if (r_nr == r_nc)
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	143 {
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	144 octave_idx_type n = r_nc;
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	145 octave_idx_type info;
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	146
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	147 ComplexMatrix tmp = r;
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	148
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	149 F77_XFCN (zpotri, ZPOTRI, (F77_CONST_CHAR_ARG2 ("U", 1), n,
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	150 tmp.fortran_vec (), n, info
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	151 F77_CHAR_ARG_LEN (1)));
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	152
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	153 // If someone thinks of a more graceful way of doing this (or
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	154 // faster for that matter :-)), please let me know!
5340 15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	155
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	156 if (n > 1)
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	157 for (octave_idx_type j = 0; j < r_nc; j++)
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	158 for (octave_idx_type i = j+1; i < r_nr; i++)
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	159 tmp.xelem (i, j) = std::conj (tmp.xelem (j, i));
5340 15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	160
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	161 retval = tmp;
5340 15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	162 }
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	163 else
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	164 (*current_liboctave_error_handler) ("chol2inv requires square matrix");
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	165
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	166 return retval;
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	167 }
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	168
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	169 // Compute the inverse of a matrix using the Cholesky factorization.
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	170 ComplexMatrix
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	171 ComplexCHOL::inverse (void) const
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	172 {
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	173 return chol2inv_internal (chol_mat);
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	174 }
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	175
7554 40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	176 void
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	177 ComplexCHOL::set (const ComplexMatrix& R)
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	178 {
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	179 if (R.is_square ())
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	180 chol_mat = R;
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	181 else
7559 07522d7dcdf8 fixes to QR and Cholesky updating code Jaroslav Hajek <highegg@gmail.com> parents: 7554 diff changeset	182 (*current_liboctave_error_handler) ("CHOL requires square matrix");
7554 40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	183 }
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	184
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	185 void
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	186 ComplexCHOL::update (const ComplexMatrix& u)
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	187 {
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	188 octave_idx_type n = chol_mat.rows ();
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	189
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	190 if (u.length () == n)
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	191 {
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	192 ComplexMatrix tmp = u;
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	193
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	194 OCTAVE_LOCAL_BUFFER (double, w, n);
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	195
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	196 F77_XFCN (zch1up, ZCH1UP, (n, chol_mat.fortran_vec (),
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	197 tmp.fortran_vec (), w));
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	198 }
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	199 else
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	200 (*current_liboctave_error_handler) ("CHOL update dimension mismatch");
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	201 }
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	202
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	203 octave_idx_type
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	204 ComplexCHOL::downdate (const ComplexMatrix& u)
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	205 {
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	206 octave_idx_type info = -1;
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	207
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	208 octave_idx_type n = chol_mat.rows ();
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	209
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	210 if (u.length () == n)
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	211 {
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	212 ComplexMatrix tmp = u;
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	213
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	214 OCTAVE_LOCAL_BUFFER (double, w, n);
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	215
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	216 F77_XFCN (zch1dn, ZCH1DN, (n, chol_mat.fortran_vec (),
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	217 tmp.fortran_vec (), w, info));
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	218 }
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	219 else
7559 07522d7dcdf8 fixes to QR and Cholesky updating code Jaroslav Hajek <highegg@gmail.com> parents: 7554 diff changeset	220 (*current_liboctave_error_handler) ("CHOL downdate dimension mismatch");
7554 40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	221
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	222 return info;
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	223 }
40574114c514 implement Cholesky factorization updating Jaroslav Hajek <highegg@gmail.com> parents: 7482 diff changeset	224
7700 efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	225 octave_idx_type
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	226 ComplexCHOL::insert_sym (const ComplexMatrix& u, octave_idx_type j)
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	227 {
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	228 octave_idx_type info = -1;
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	229
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	230 octave_idx_type n = chol_mat.rows ();
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	231
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	232 if (u.length () != n+1)
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	233 (*current_liboctave_error_handler) ("CHOL insert dimension mismatch");
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	234 else if (j < 0 \|\| j > n)
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	235 (*current_liboctave_error_handler) ("CHOL insert index out of range");
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	236 else
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	237 {
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	238 ComplexMatrix chol_mat1 (n+1, n+1);
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	239
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	240 F77_XFCN (zchinx, ZCHINX, (n, chol_mat.data (), chol_mat1.fortran_vec (),
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	241 j+1, u.data (), info));
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	242
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	243 chol_mat = chol_mat1;
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	244 }
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	245
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	246 return info;
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	247 }
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	248
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	249 void
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	250 ComplexCHOL::delete_sym (octave_idx_type j)
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	251 {
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	252 octave_idx_type n = chol_mat.rows ();
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	253
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	254 if (j < 0 \|\| j > n-1)
7725 7c9ba697a479 cosmetic fixes in QR & Cholesky updating codes Jaroslav Hajek <highegg@gmail.com> parents: 7700 diff changeset	255 (*current_liboctave_error_handler) ("CHOL delete index out of range");
7700 efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	256 else
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	257 {
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	258 ComplexMatrix chol_mat1 (n-1, n-1);
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	259
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	260 F77_XFCN (zchdex, ZCHDEX, (n, chol_mat.data (), chol_mat1.fortran_vec (), j+1));
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	261
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	262 chol_mat = chol_mat1;
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	263 }
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	264 }
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	265
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	266 void
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	267 ComplexCHOL::shift_sym (octave_idx_type i, octave_idx_type j)
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	268 {
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	269 octave_idx_type n = chol_mat.rows ();
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	270 Complex dummy;
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	271
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	272 if (i < 0 \|\| i > n-1 \|\| j < 0 \|\| j > n-1)
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	273 (*current_liboctave_error_handler) ("CHOL shift index out of range");
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	274 else
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	275 F77_XFCN (zqrshc, ZQRSHC, (0, n, n, &dummy, chol_mat.fortran_vec (), i+1, j+1));
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	276 }
efccca5f2ad7 more QR & Cholesky updating functions Jaroslav Hajek <highegg@gmail.com> parents: 7559 diff changeset	277
5340 15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	278 ComplexMatrix
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	279 chol2inv (const ComplexMatrix& r)
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	280 {
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	281 return chol2inv_internal (r);
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	282 }
15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5307 diff changeset	283
457 3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	284 /*
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	285 ;;; Local Variables: ***
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	286 ;;; mode: C++ ***
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	287 ;;; End: ***
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe] jwe parents: diff changeset	288 */

Mercurial > hg > octave-nkf

annotate liboctave/CmplxCHOL.cc @ 8377:25bc2d31e1bf