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doc: Correct typos in lu documentation. * lu.cc: Change 'spare' to 'sparse'. Cuddle parentheses for indexing.
author Rik <rik@octave.org>
date Sun, 27 Mar 2016 15:15:24 -0700
parents a4faec57f4c8
children ad0599a0acc6
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1 /*
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2
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3 Copyright (C) 1996-2015 John W. Eaton
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4
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5 This file is part of Octave.
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6
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
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23 #ifdef HAVE_CONFIG_H
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24 # include "config.h"
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25 #endif
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26
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27 #include "lu.h"
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28 #include "sparse-lu.h"
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29
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30 #include "defun.h"
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31 #include "error.h"
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32 #include "errwarn.h"
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33 #include "ovl.h"
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34 #include "utils.h"
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35 #include "ov-re-sparse.h"
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36 #include "ov-cx-sparse.h"
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37
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38 template <typename MT>
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39 static octave_value
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40 get_lu_l (const lu<MT>& fact)
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41 {
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42 MT L = fact.L ();
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43 if (L.is_square ())
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44 return octave_value (L, MatrixType (MatrixType::Lower));
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45 else
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46 return L;
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47 }
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48
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49 template <typename MT>
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50 static octave_value
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51 get_lu_u (const lu<MT>& fact)
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52 {
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53 MT U = fact.U ();
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54 if (U.is_square () && fact.regular ())
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55 return octave_value (U, MatrixType (MatrixType::Upper));
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56 else
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57 return U;
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58 }
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59
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60 DEFUN (lu, args, nargout,
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61 "-*- texinfo -*-\n\
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62 @deftypefn {} {[@var{L}, @var{U}] =} lu (@var{A})\n\
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63 @deftypefnx {} {[@var{L}, @var{U}, @var{P}] =} lu (@var{A})\n\
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64 @deftypefnx {} {[@var{L}, @var{U}, @var{P}, @var{Q}] =} lu (@var{S})\n\
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65 @deftypefnx {} {[@var{L}, @var{U}, @var{P}, @var{Q}, @var{R}] =} lu (@var{S})\n\
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66 @deftypefnx {} {[@dots{}] =} lu (@var{S}, @var{thres})\n\
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67 @deftypefnx {} {@var{y} =} lu (@dots{})\n\
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68 @deftypefnx {} {[@dots{}] =} lu (@dots{}, \"vector\")\n\
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69 @cindex LU decomposition\n\
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70 Compute the LU@tie{}decomposition of @var{A}.\n\
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71 \n\
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72 If @var{A} is full then subroutines from @sc{lapack} are used, and if\n\
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73 @var{A} is sparse then @sc{umfpack} is used.\n\
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74 \n\
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75 The result is returned in a permuted form, according to the optional return\n\
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76 value @var{P}. For example, given the matrix @code{a = [1, 2; 3, 4]},\n\
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77 \n\
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78 @example\n\
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79 [l, u, p] = lu (@var{a})\n\
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80 @end example\n\
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81 \n\
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82 @noindent\n\
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83 returns\n\
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84 \n\
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85 @example\n\
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86 @group\n\
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87 l =\n\
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88 \n\
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89 1.00000 0.00000\n\
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90 0.33333 1.00000\n\
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91 \n\
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92 u =\n\
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93 \n\
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94 3.00000 4.00000\n\
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95 0.00000 0.66667\n\
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96 \n\
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97 p =\n\
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98 \n\
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99 0 1\n\
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100 1 0\n\
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101 @end group\n\
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102 @end example\n\
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103 \n\
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104 The matrix is not required to be square.\n\
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105 \n\
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106 When called with two or three output arguments and a sparse input matrix,\n\
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107 @code{lu} does not attempt to perform sparsity preserving column\n\
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108 permutations. Called with a fourth output argument, the sparsity\n\
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109 preserving column transformation @var{Q} is returned, such that\n\
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110 @code{@var{P} * @var{A} * @var{Q} = @var{L} * @var{U}}.\n\
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111 \n\
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112 Called with a fifth output argument and a sparse input matrix,\n\
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113 @code{lu} attempts to use a scaling factor @var{R} on the input matrix\n\
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114 such that\n\
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115 @code{@var{P} * (@var{R} \\ @var{A}) * @var{Q} = @var{L} * @var{U}}.\n\
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116 This typically leads to a sparser and more stable factorization.\n\
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117 \n\
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118 An additional input argument @var{thres}, that defines the pivoting\n\
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119 threshold can be given. @var{thres} can be a scalar, in which case\n\
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120 it defines the @sc{umfpack} pivoting tolerance for both symmetric and\n\
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121 unsymmetric cases. If @var{thres} is a 2-element vector, then the first\n\
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122 element defines the pivoting tolerance for the unsymmetric @sc{umfpack}\n\
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123 pivoting strategy and the second for the symmetric strategy. By default,\n\
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124 the values defined by @code{spparms} are used ([0.1, 0.001]).\n\
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125 \n\
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126 Given the string argument @qcode{\"vector\"}, @code{lu} returns the values\n\
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127 of @var{P} and @var{Q} as vector values, such that for full matrix,\n\
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128 @code{@var{A}(@var{P},:) = @var{L} * @var{U}}, and @code{@var{R}(@var{P},:)\n\
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129 * @var{A}(:,@var{Q}) = @var{L} * @var{U}}.\n\
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130 \n\
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131 With two output arguments, returns the permuted forms of the upper and\n\
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132 lower triangular matrices, such that @code{@var{A} = @var{L} * @var{U}}.\n\
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Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
133 With one output argument @var{y}, then the matrix returned by the @sc{lapack}\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
134 routines is returned. If the input matrix is sparse then the matrix @var{L}\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
135 is embedded into @var{U} to give a return value similar to the full case.\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
136 For both full and sparse matrices, @code{lu} loses the permutation\n\
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David Bateman <dbateman@free.fr>
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diff changeset
137 information.\n\
19055
38937efbee21 Incorporate new functions ichol and ilu into Octave.
Rik <rik@octave.org>
parents: 18849
diff changeset
138 @seealso{luupdate, ilu, chol, hess, qr, qz, schur, svd}\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3014
diff changeset
139 @end deftypefn")
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diff changeset
140 {
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diff changeset
141 int nargin = args.length ();
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
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parents: 7017
diff changeset
142 bool issparse = (nargin > 0 && args(0).is_sparse_type ());
2928
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jwe
parents:
diff changeset
143
20909
03e4ddd49396 omit unnecessary nargout checks
John W. Eaton <jwe@octave.org>
parents: 20898
diff changeset
144 if (nargin < 1 || (issparse && nargin > 3) || (! issparse && nargin > 2))
20802
8bb38ba1bad6 eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20711
diff changeset
145 print_usage ();
2928
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jwe
parents:
diff changeset
146
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David Bateman <dbateman@free.fr>
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diff changeset
147 bool vecout = false;
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
148 Matrix thres;
20892
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Rik <rik@octave.org>
parents: 20853
diff changeset
149 int n = 1;
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diff changeset
150
20555
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John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
151 while (n < nargin)
7515
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parents: 7017
diff changeset
152 {
18112
b560bac0fca2 maint: Don't use space between 'args' and '(' when doing indexing.
Rik <rik@octave.org>
parents: 18100
diff changeset
153 if (args(n).is_string ())
10154
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John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
154 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
155 std::string tmp = args(n++).string_value ();
7515
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David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
156
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Rik <rik@octave.org>
parents: 20853
diff changeset
157 if (tmp == "vector")
19743
67f2c76f9f4d Remove unnecessary checking of error_state after is_string validation.
Rik <rik@octave.org>
parents: 19697
diff changeset
158 vecout = true;
67f2c76f9f4d Remove unnecessary checking of error_state after is_string validation.
Rik <rik@octave.org>
parents: 19697
diff changeset
159 else
67f2c76f9f4d Remove unnecessary checking of error_state after is_string validation.
Rik <rik@octave.org>
parents: 19697
diff changeset
160 error ("lu: unrecognized string argument");
10154
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John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
161 }
7515
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David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
162 else
10154
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John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
163 {
20892
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Rik <rik@octave.org>
parents: 20853
diff changeset
164 if (! issparse)
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
165 error ("lu: can not define pivoting threshold THRES for full matrices");
21055
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Rik <rik@octave.org>
parents: 20941
diff changeset
166
10154
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John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
167 Matrix tmp = args(n++).matrix_value ();
20892
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parents: 20853
diff changeset
168 if (tmp.numel () == 1)
10154
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John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
169 {
20555
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John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
170 thres.resize (1,2);
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
171 thres(0) = tmp(0);
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
172 thres(1) = tmp(0);
10154
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John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
173 }
20555
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John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
174 else if (tmp.numel () == 2)
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
175 thres = tmp;
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
176 else
20711
7b608fadc663 Make error messages more specific about the variable and problem encountered.
Rik <rik@octave.org>
parents: 20555
diff changeset
177 error ("lu: THRES must be a 1 or 2-element vector");
10154
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John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
178 }
7515
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David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
179 }
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
180
20892
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Rik <rik@octave.org>
parents: 20853
diff changeset
181 octave_value_list retval;
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
182 bool scale = (nargout == 5);
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
183
2928
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jwe
parents:
diff changeset
184 octave_value arg = args(0);
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
185
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 4329
diff changeset
186 octave_idx_type nr = arg.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 4329
diff changeset
187 octave_idx_type nc = arg.columns ();
2928
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jwe
parents:
diff changeset
188
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
189 int arg_is_empty = empty_arg ("lu", nr, nc);
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
190
7515
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David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
191 if (issparse)
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
192 {
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
193 if (arg_is_empty < 0)
20941
a4f5da7c5463 maint: Replace "octave_value_list ()" with "ovl ()".
Rik <rik@octave.org>
parents: 20940
diff changeset
194 return ovl ();
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
195 else if (arg_is_empty > 0)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
196 return octave_value_list (5, SparseMatrix ());
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
197
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
198 if (arg.is_real_type ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
199 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
200 SparseMatrix m = arg.sparse_matrix_value ();
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
201
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
202 if (nargout < 4)
10154
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John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
203 {
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
204 ColumnVector Qinit (nc);
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
205 for (octave_idx_type i = 0; i < nc; i++)
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
206 Qinit(i) = i;
21146
ea9c05014809 revamp sparse LU factorization classes
John W. Eaton <jwe@octave.org>
parents: 21139
diff changeset
207 sparse_lu<SparseMatrix> fact (m, Qinit, thres, false, true);
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
208
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
209 if (nargout < 2)
19861
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19743
diff changeset
210 retval(0) = fact.Y ();
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
211 else
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
212 {
20921
4d3daf7e43f3 eliminate trailing whitespace in source files
John W. Eaton <jwe@octave.org>
parents: 20909
diff changeset
213 retval.resize (nargout == 3 ? 3 : 2);
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
214 retval(1)
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
215 = octave_value (
19593
446c46af4b42 strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents: 18488
diff changeset
216 fact.U () * fact.Pc_mat ().transpose (),
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
217 MatrixType (MatrixType::Permuted_Upper,
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
218 nc, fact.col_perm ()));
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
219
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
220 PermMatrix P = fact.Pr_mat ();
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
221 SparseMatrix L = fact.L ();
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
222
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
223 if (nargout == 2)
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
224 retval(0)
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
225 = octave_value (P.transpose () * L,
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
226 MatrixType (MatrixType::Permuted_Lower,
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
227 nr, fact.row_perm ()));
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
228 else
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
229 {
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
230 retval(0) = L;
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
231 if (vecout)
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
232 retval(2) = fact.Pr_vec();
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
233 else
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
234 retval(2) = P;
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
235 }
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
236 }
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
237 }
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
238 else
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
239 {
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
240 retval.resize (scale ? 5 : 4);
21146
ea9c05014809 revamp sparse LU factorization classes
John W. Eaton <jwe@octave.org>
parents: 21139
diff changeset
241 sparse_lu<SparseMatrix> fact (m, thres, scale);
2928
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jwe
parents:
diff changeset
242
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
243 retval(0) = octave_value (fact.L (),
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
244 MatrixType (MatrixType::Lower));
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
245 retval(1) = octave_value (fact.U (),
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
246 MatrixType (MatrixType::Upper));
7515
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David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
247
19861
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19743
diff changeset
248 if (vecout)
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19743
diff changeset
249 {
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
250 retval(2) = fact.Pr_vec ();
19861
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19743
diff changeset
251 retval(3) = fact.Pc_vec ();
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19743
diff changeset
252 }
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19743
diff changeset
253 else
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19743
diff changeset
254 {
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
255 retval(2) = fact.Pr_mat ();
19861
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19743
diff changeset
256 retval(3) = fact.Pc_mat ();
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19743
diff changeset
257 }
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
258
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
259 if (scale)
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
260 retval(4) = fact.R ();
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
261 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
262 }
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
263 else if (arg.is_complex_type ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
264 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
265 SparseComplexMatrix m = arg.sparse_complex_matrix_value ();
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
266
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
267 if (nargout < 4)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
268 {
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
269 ColumnVector Qinit (nc);
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
270 for (octave_idx_type i = 0; i < nc; i++)
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
271 Qinit(i) = i;
21146
ea9c05014809 revamp sparse LU factorization classes
John W. Eaton <jwe@octave.org>
parents: 21139
diff changeset
272 sparse_lu<SparseComplexMatrix> fact (m, Qinit, thres, false, true);
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
273
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
274 if (nargout < 2)
19861
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19743
diff changeset
275 retval(0) = fact.Y ();
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
276 else
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
277 {
20921
4d3daf7e43f3 eliminate trailing whitespace in source files
John W. Eaton <jwe@octave.org>
parents: 20909
diff changeset
278 retval.resize (nargout == 3 ? 3 : 2);
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
279 retval(1)
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
280 = octave_value (
19593
446c46af4b42 strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents: 18488
diff changeset
281 fact.U () * fact.Pc_mat ().transpose (),
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
282 MatrixType (MatrixType::Permuted_Upper,
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
283 nc, fact.col_perm ()));
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
284
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
285 PermMatrix P = fact.Pr_mat ();
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
286 SparseComplexMatrix L = fact.L ();
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
287 if (nargout == 2)
19861
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19743
diff changeset
288 retval(0)
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19743
diff changeset
289 = octave_value (P.transpose () * L,
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19743
diff changeset
290 MatrixType (MatrixType::Permuted_Lower,
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19743
diff changeset
291 nr, fact.row_perm ()));
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
292 else
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
293 {
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
294 retval(0) = L;
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
295 if (vecout)
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
296 retval(2) = fact.Pr_vec();
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
297 else
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
298 retval(2) = P;
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
299 }
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
300 }
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
301 }
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
302 else
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
303 {
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
304 retval.resize (scale ? 5 : 4);
21146
ea9c05014809 revamp sparse LU factorization classes
John W. Eaton <jwe@octave.org>
parents: 21139
diff changeset
305 sparse_lu<SparseComplexMatrix> fact (m, thres, scale);
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
306
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
307 retval(0) = octave_value (fact.L (),
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
308 MatrixType (MatrixType::Lower));
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
309 retval(1) = octave_value (fact.U (),
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
310 MatrixType (MatrixType::Upper));
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
311
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
312 if (vecout)
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
313 {
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
314 retval(2) = fact.Pr_vec ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
315 retval(3) = fact.Pc_vec ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
316 }
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
317 else
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
318 {
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
319 retval(2) = fact.Pr_mat ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
320 retval(3) = fact.Pc_mat ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
321 }
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
322
19861
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19743
diff changeset
323 if (scale)
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19743
diff changeset
324 retval(4) = fact.R ();
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
325 }
18427
93c019f00e59 maint: whitespace fixes for libinterp/corefcn/lu.cc
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 18426
diff changeset
326
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
327 }
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
328 else
21100
e39e05d90788 Switch gripe_XXX to either err_XXX or warn_XXX naming scheme.
Rik <rik@octave.org>
parents: 21055
diff changeset
329 err_wrong_type_arg ("lu", arg);
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
330 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
331 else
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
332 {
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
333 if (arg_is_empty < 0)
20941
a4f5da7c5463 maint: Replace "octave_value_list ()" with "ovl ()".
Rik <rik@octave.org>
parents: 20940
diff changeset
334 return ovl ();
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
335 else if (arg_is_empty > 0)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
336 return octave_value_list (3, Matrix ());
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
337
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
338 if (arg.is_real_type ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
339 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
340 if (arg.is_single_type ())
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
341 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
342 FloatMatrix m = arg.float_matrix_value ();
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
343
21271
7e67c7f82fc1 better use of templates for lu factorization classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
344 lu<FloatMatrix> fact (m);
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
345
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
346 switch (nargout)
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
347 {
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
348 case 0:
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
349 case 1:
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
350 retval = ovl (fact.Y ());
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
351 break;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7515
diff changeset
352
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
353 case 2:
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
354 {
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
355 PermMatrix P = fact.P ();
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
356 FloatMatrix L = P.transpose () * fact.L ();
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
357 retval = ovl (L, get_lu_u (fact));
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
358 }
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
359 break;
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
360
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
361 case 3:
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
362 default:
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
363 {
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
364 if (vecout)
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
365 retval = ovl (get_lu_l (fact), get_lu_u (fact),
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
366 fact.P_vec ());
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
367 else
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
368 retval = ovl (get_lu_l (fact), get_lu_u (fact),
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
369 fact.P ());
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
370 }
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
371 break;
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
372 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
373 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
374 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
375 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
376 Matrix m = arg.matrix_value ();
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7515
diff changeset
377
21271
7e67c7f82fc1 better use of templates for lu factorization classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
378 lu<Matrix> fact (m);
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
379
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
380 switch (nargout)
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
381 {
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
382 case 0:
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
383 case 1:
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
384 retval = ovl (fact.Y ());
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
385 break;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7515
diff changeset
386
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
387 case 2:
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
388 {
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
389 PermMatrix P = fact.P ();
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
390 Matrix L = P.transpose () * fact.L ();
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
391 retval = ovl (L, get_lu_u (fact));
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
392 }
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
393 break;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7515
diff changeset
394
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
395 case 3:
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
396 default:
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
397 {
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
398 if (vecout)
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
399 retval = ovl (get_lu_l (fact), get_lu_u (fact),
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
400 fact.P_vec ());
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
401 else
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
402 retval = ovl (get_lu_l (fact), get_lu_u (fact),
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
403 fact.P ());
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
404 }
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
405 break;
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
406 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
407 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
408 }
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
409 else if (arg.is_complex_type ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
410 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
411 if (arg.is_single_type ())
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
412 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
413 FloatComplexMatrix m = arg.float_complex_matrix_value ();
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
414
21271
7e67c7f82fc1 better use of templates for lu factorization classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
415 lu<FloatComplexMatrix> fact (m);
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
416
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
417 switch (nargout)
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
418 {
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
419 case 0:
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
420 case 1:
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
421 retval = ovl (fact.Y ());
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
422 break;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7515
diff changeset
423
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
424 case 2:
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
425 {
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
426 PermMatrix P = fact.P ();
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
427 FloatComplexMatrix L = P.transpose () * fact.L ();
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
428 retval = ovl (L, get_lu_u (fact));
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
429 }
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
430 break;
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
431
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
432 case 3:
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
433 default:
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
434 {
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
435 if (vecout)
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
436 retval = ovl (get_lu_l (fact), get_lu_u (fact),
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
437 fact.P_vec ());
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
438 else
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
439 retval = ovl (get_lu_l (fact), get_lu_u (fact),
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
440 fact.P ());
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
441 }
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
442 break;
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
443 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
444 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
445 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
446 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
447 ComplexMatrix m = arg.complex_matrix_value ();
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7515
diff changeset
448
21271
7e67c7f82fc1 better use of templates for lu factorization classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
449 lu<ComplexMatrix> fact (m);
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
450
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
451 switch (nargout)
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
452 {
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
453 case 0:
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
454 case 1:
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
455 retval = ovl (fact.Y ());
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
456 break;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7515
diff changeset
457
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
458 case 2:
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
459 {
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
460 PermMatrix P = fact.P ();
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
461 ComplexMatrix L = P.transpose () * fact.L ();
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
462 retval = ovl (L, get_lu_u (fact));
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
463 }
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
464 break;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7515
diff changeset
465
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
466 case 3:
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
467 default:
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
468 {
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
469 if (vecout)
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
470 retval = ovl (get_lu_l (fact), get_lu_u (fact),
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
471 fact.P_vec ());
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
472 else
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
473 retval = ovl (get_lu_l (fact), get_lu_u (fact),
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
474 fact.P ());
20555
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
475 }
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20228
diff changeset
476 break;
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
477 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
478 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
479 }
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
480 else
21100
e39e05d90788 Switch gripe_XXX to either err_XXX or warn_XXX naming scheme.
Rik <rik@octave.org>
parents: 21055
diff changeset
481 err_wrong_type_arg ("lu", arg);
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
482 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
483
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
484 return retval;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
485 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
486
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
487 /*
21317
a4faec57f4c8 maint: remove semicolon after %!assert tests to follow Octave conventions.
Rik <rik@octave.org>
parents: 21301
diff changeset
488 %!assert(lu ([1, 2; 3, 4]), [3, 4; 1/3, 2/3], eps)
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
489
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
490 %!test
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
491 %! [l, u] = lu ([1, 2; 3, 4]);
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
492 %! assert (l, [1/3, 1; 1, 0], sqrt (eps));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
493 %! assert (u, [3, 4; 0, 2/3], sqrt (eps));
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
494
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
495 %!test
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
496 %! [l, u, p] = lu ([1, 2; 3, 4]);
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
497 %! assert (l, [1, 0; 1/3, 1], sqrt (eps));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
498 %! assert (u, [3, 4; 0, 2/3], sqrt (eps));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
499 %! assert (p(:,:), [0, 1; 1, 0], sqrt (eps));
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
500
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
501 %!test
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
502 %! [l, u, p] = lu ([1, 2; 3, 4], "vector");
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
503 %! assert (l, [1, 0; 1/3, 1], sqrt (eps));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
504 %! assert (u, [3, 4; 0, 2/3], sqrt (eps));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
505 %! assert (p, [2;1], sqrt (eps));
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
506
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
507 %!test
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
508 %! [l, u, p] = lu ([1, 2; 3, 4; 5, 6]);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
509 %! assert (l, [1, 0; 1/5, 1; 3/5, 1/2], sqrt (eps));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
510 %! assert (u, [5, 6; 0, 4/5], sqrt (eps));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
511 %! assert (p(:,:), [0, 0, 1; 1, 0, 0; 0 1 0], sqrt (eps));
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
512
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
513 %!assert (lu (single ([1, 2; 3, 4])), single ([3, 4; 1/3, 2/3]), eps ("single"))
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
514
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
515 %!test
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
516 %! [l, u] = lu (single ([1, 2; 3, 4]));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
517 %! assert (l, single ([1/3, 1; 1, 0]), sqrt (eps ("single")));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
518 %! assert (u, single ([3, 4; 0, 2/3]), sqrt (eps ("single")));
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
519
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
520 %!test
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
521 %! [l, u, p] = lu (single ([1, 2; 3, 4]));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
522 %! assert (l, single ([1, 0; 1/3, 1]), sqrt (eps ("single")));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
523 %! assert (u, single ([3, 4; 0, 2/3]), sqrt (eps ("single")));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
524 %! assert (p(:,:), single ([0, 1; 1, 0]), sqrt (eps ("single")));
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
525
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
526 %!test
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
527 %! [l, u, p] = lu (single ([1, 2; 3, 4]), "vector");
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
528 %! assert (l, single ([1, 0; 1/3, 1]), sqrt (eps ("single")));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
529 %! assert (u, single ([3, 4; 0, 2/3]), sqrt (eps ("single")));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
530 %! assert (p, single ([2;1]), sqrt (eps ("single")));
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
531
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
532 %!test
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
533 %! [l u p] = lu (single ([1, 2; 3, 4; 5, 6]));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
534 %! assert (l, single ([1, 0; 1/5, 1; 3/5, 1/2]), sqrt (eps ("single")));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
535 %! assert (u, single ([5, 6; 0, 4/5]), sqrt (eps ("single")));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
536 %! assert (p(:,:), single ([0, 0, 1; 1, 0, 0; 0 1 0]), sqrt (eps ("single")));
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
537
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
538 %!error lu ()
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
539 %!error <can not define pivoting threshold> lu ([1, 2; 3, 4], 2)
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
540
18488
4c2465444a96 Use %!testif HAVE_UMFPACK for sparse lu test added in cset 2a45b6b87bee
Mike Miller <mtmiller@ieee.org>
parents: 18427
diff changeset
541 %!testif HAVE_UMFPACK
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
542 %! Bi = [1 2 3 4 5 2 3 6 7 8 4 5 7 8 9];
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
543 %! Bj = [1 3 4 5 6 7 8 9 11 12 13 14 15 16 17];
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
544 %! Bv = [1 1 1 1 1 1 -1 1 1 1 1 -1 1 -1 1];
18427
93c019f00e59 maint: whitespace fixes for libinterp/corefcn/lu.cc
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 18426
diff changeset
545 %! B = sparse (Bi, Bj, Bv);
93c019f00e59 maint: whitespace fixes for libinterp/corefcn/lu.cc
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 18426
diff changeset
546 %! [L, U] = lu (B);
18426
807e21ebddd5 maint: Style fixes for tests in libinterp/corefcn/lu.cc
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 18425
diff changeset
547 %! assert (L*U, B);
18427
93c019f00e59 maint: whitespace fixes for libinterp/corefcn/lu.cc
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 18426
diff changeset
548 %! [L, U, P] = lu(B);
18426
807e21ebddd5 maint: Style fixes for tests in libinterp/corefcn/lu.cc
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 18425
diff changeset
549 %! assert (P'*L*U, B);
18427
93c019f00e59 maint: whitespace fixes for libinterp/corefcn/lu.cc
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 18426
diff changeset
550 %! [L, U, P, Q] = lu (B);
18426
807e21ebddd5 maint: Style fixes for tests in libinterp/corefcn/lu.cc
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 18425
diff changeset
551 %! assert (P'*L*U*Q', B);
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
552
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
553 */
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
554
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
555 static
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
556 bool check_lu_dims (const octave_value& l, const octave_value& u,
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
557 const octave_value& p)
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
558 {
18100
6a71e5030df5 Follow coding convention of defining and initializing only 1 variable per line in liboctinterp.
Rik <rik@octave.org>
parents: 17787
diff changeset
559 octave_idx_type m = l.rows ();
6a71e5030df5 Follow coding convention of defining and initializing only 1 variable per line in liboctinterp.
Rik <rik@octave.org>
parents: 17787
diff changeset
560 octave_idx_type k = u.rows ();
6a71e5030df5 Follow coding convention of defining and initializing only 1 variable per line in liboctinterp.
Rik <rik@octave.org>
parents: 17787
diff changeset
561 octave_idx_type n = u.columns ();
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
562
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
563 return ((l.ndims () == 2 && u.ndims () == 2 && k == l.columns ())
19864
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions.
John W. Eaton <jwe@octave.org>
parents: 19861
diff changeset
564 && k == std::min (m, n)
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions.
John W. Eaton <jwe@octave.org>
parents: 19861
diff changeset
565 && (p.is_undefined () || p.rows () == m));
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
566 }
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
567
15039
e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents: 14854
diff changeset
568 DEFUN (luupdate, args, ,
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
569 "-*- texinfo -*-\n\
20853
1142cf6abc0d 2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents: 20816
diff changeset
570 @deftypefn {} {[@var{L}, @var{U}] =} luupdate (@var{L}, @var{U}, @var{x}, @var{y})\n\
1142cf6abc0d 2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents: 20816
diff changeset
571 @deftypefnx {} {[@var{L}, @var{U}, @var{P}] =} luupdate (@var{L}, @var{U}, @var{P}, @var{x}, @var{y})\n\
9709
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
572 Given an LU@tie{}factorization of a real or complex matrix\n\
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
573 @w{@var{A} = @var{L}*@var{U}}, @var{L}@tie{}lower unit trapezoidal and\n\
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
574 @var{U}@tie{}upper trapezoidal, return the LU@tie{}factorization\n\
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
575 of @w{@var{A} + @var{x}*@var{y}.'}, where @var{x} and @var{y} are\n\
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
576 column vectors (rank-1 update) or matrices with equal number of columns\n\
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
577 (rank-k update).\n\
20172
4f45eaf83908 doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents: 19864
diff changeset
578 \n\
4f45eaf83908 doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents: 19864
diff changeset
579 Optionally, row-pivoted updating can be used by supplying a row permutation\n\
4f45eaf83908 doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents: 19864
diff changeset
580 (pivoting) matrix @var{P}; in that case, an updated permutation matrix is\n\
4f45eaf83908 doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents: 19864
diff changeset
581 returned. Note that if @var{L}, @var{U}, @var{P} is a pivoted\n\
4f45eaf83908 doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents: 19864
diff changeset
582 LU@tie{}factorization as obtained by @code{lu}:\n\
9709
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
583 \n\
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
584 @example\n\
14360
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
585 [@var{L}, @var{U}, @var{P}] = lu (@var{A});\n\
9709
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
586 @end example\n\
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
587 \n\
10846
a4f482e66b65 Grammarcheck more of the documentation.
Rik <octave@nomad.inbox5.com>
parents: 10840
diff changeset
588 @noindent\n\
17268
1c21f264d26f doc: Rename @xcode macro to @tcode (transpose code) for clarity.
Rik <rik@octave.org>
parents: 16920
diff changeset
589 then a factorization of @tcode{@var{A}+@var{x}*@var{y}.'} can be obtained\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
590 either as\n\
9709
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
591 \n\
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
592 @example\n\
14360
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
593 [@var{L1}, @var{U1}] = lu (@var{L}, @var{U}, @var{P}*@var{x}, @var{y})\n\
9709
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
594 @end example\n\
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
595 \n\
10846
a4f482e66b65 Grammarcheck more of the documentation.
Rik <octave@nomad.inbox5.com>
parents: 10840
diff changeset
596 @noindent\n\
9709
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
597 or\n\
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
598 \n\
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
599 @example\n\
14360
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
600 [@var{L1}, @var{U1}, @var{P1}] = lu (@var{L}, @var{U}, @var{P}, @var{x}, @var{y})\n\
9709
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
601 @end example\n\
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
602 \n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
603 The first form uses the unpivoted algorithm, which is faster, but less\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
604 stable. The second form uses a slower pivoted algorithm, which is more\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
605 stable.\n\
9709
f8e2e9fdaa8f document luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9708
diff changeset
606 \n\
20172
4f45eaf83908 doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents: 19864
diff changeset
607 The matrix case is done as a sequence of rank-1 updates; thus, for large\n\
4f45eaf83908 doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents: 19864
diff changeset
608 enough k, it will be both faster and more accurate to recompute the\n\
4f45eaf83908 doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents: 19864
diff changeset
609 factorization from scratch.\n\
16920
53eaa83e4181 doc: Add seealso links between various factorization forms.
Rik <rik@octave.org>
parents: 15195
diff changeset
610 @seealso{lu, cholupdate, qrupdate}\n\
9724
f22bbc5d56e9 Fix various incorrect usages of TeXinfo deffn and deftypefn macros
Rik <rdrider0-list@yahoo.com>
parents: 9715
diff changeset
611 @end deftypefn")
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
612 {
20816
b16bcd7a2a33 Use int rather than octave_idx_type for nargin data type.
Rik <rik@octave.org>
parents: 20812
diff changeset
613 int nargin = args.length ();
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
614
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
615 if (nargin != 4 && nargin != 5)
20802
8bb38ba1bad6 eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20711
diff changeset
616 print_usage ();
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
617
20812
d9ca869ca124 maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents: 20802
diff changeset
618 bool pivoted = (nargin == 5);
d9ca869ca124 maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents: 20802
diff changeset
619
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
620 octave_value argl = args(0);
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
621 octave_value argu = args(1);
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
622 octave_value argp = pivoted ? args(2) : octave_value ();
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
623 octave_value argx = args(2 + pivoted);
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
624 octave_value argy = args(3 + pivoted);
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
625
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
626 if (! (argl.is_numeric_type () && argu.is_numeric_type ()
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
627 && argx.is_numeric_type () && argy.is_numeric_type ()
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
628 && (! pivoted || argp.is_perm_matrix ())))
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
629 error ("luupdate: L, U, X, and Y must be numeric");
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
630
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
631 if (! check_lu_dims (argl, argu, argp))
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
632 error ("luupdate: dimension mismatch");
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
633
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
634 PermMatrix P = (pivoted
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
635 ? argp.perm_matrix_value ()
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
636 : PermMatrix::eye (argl.rows ()));
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
637
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
638 if (argl.is_real_type () && argu.is_real_type ()
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
639 && argx.is_real_type () && argy.is_real_type ())
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
640 {
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
641 // all real case
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
642 if (argl.is_single_type () || argu.is_single_type ()
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
643 || argx.is_single_type () || argy.is_single_type ())
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
644 {
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
645 FloatMatrix L = argl.float_matrix_value ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
646 FloatMatrix U = argu.float_matrix_value ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
647 FloatMatrix x = argx.float_matrix_value ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
648 FloatMatrix y = argy.float_matrix_value ();
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
649
21271
7e67c7f82fc1 better use of templates for lu factorization classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
650 lu<FloatMatrix> fact (L, U, P);
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
651 if (pivoted)
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
652 fact.update_piv (x, y);
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
653 else
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
654 fact.update (x, y);
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
655
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
656 if (pivoted)
20898
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20892
diff changeset
657 return ovl (get_lu_l (fact), get_lu_u (fact), fact.P ());
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20892
diff changeset
658 else
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20892
diff changeset
659 return ovl (get_lu_l (fact), get_lu_u (fact));
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
660 }
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
661 else
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
662 {
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
663 Matrix L = argl.matrix_value ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
664 Matrix U = argu.matrix_value ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
665 Matrix x = argx.matrix_value ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
666 Matrix y = argy.matrix_value ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
667
21271
7e67c7f82fc1 better use of templates for lu factorization classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
668 lu<Matrix> fact (L, U, P);
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
669 if (pivoted)
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
670 fact.update_piv (x, y);
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
671 else
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
672 fact.update (x, y);
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
673
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
674 if (pivoted)
20898
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20892
diff changeset
675 return ovl (get_lu_l (fact), get_lu_u (fact), fact.P ());
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20892
diff changeset
676 else
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20892
diff changeset
677 return ovl (get_lu_l (fact), get_lu_u (fact));
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
678 }
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
679 }
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
680 else
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
681 {
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
682 // complex case
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
683 if (argl.is_single_type () || argu.is_single_type ()
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
684 || argx.is_single_type () || argy.is_single_type ())
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
685 {
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
686 FloatComplexMatrix L = argl.float_complex_matrix_value ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
687 FloatComplexMatrix U = argu.float_complex_matrix_value ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
688 FloatComplexMatrix x = argx.float_complex_matrix_value ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
689 FloatComplexMatrix y = argy.float_complex_matrix_value ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
690
21271
7e67c7f82fc1 better use of templates for lu factorization classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
691 lu<FloatComplexMatrix> fact (L, U, P);
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
692 if (pivoted)
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
693 fact.update_piv (x, y);
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
694 else
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
695 fact.update (x, y);
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
696
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
697 if (pivoted)
20898
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20892
diff changeset
698 return ovl (get_lu_l (fact), get_lu_u (fact), fact.P ());
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20892
diff changeset
699 else
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20892
diff changeset
700 return ovl (get_lu_l (fact), get_lu_u (fact));
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
701 }
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
702 else
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
703 {
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
704 ComplexMatrix L = argl.complex_matrix_value ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
705 ComplexMatrix U = argu.complex_matrix_value ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
706 ComplexMatrix x = argx.complex_matrix_value ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
707 ComplexMatrix y = argy.complex_matrix_value ();
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
708
21271
7e67c7f82fc1 better use of templates for lu factorization classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
709 lu<ComplexMatrix> fact (L, U, P);
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
710 if (pivoted)
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
711 fact.update_piv (x, y);
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
712 else
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
713 fact.update (x, y);
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
714
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
715 if (pivoted)
20898
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20892
diff changeset
716 return ovl (get_lu_l (fact), get_lu_u (fact), fact.P ());
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20892
diff changeset
717 else
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20892
diff changeset
718 return ovl (get_lu_l (fact), get_lu_u (fact));
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
719 }
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
720 }
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
721 }
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
722
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
723 /*
10080
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
724 %!shared A, u, v, Ac, uc, vc
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
725 %! A = [0.091364 0.613038 0.999083;
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
726 %! 0.594638 0.425302 0.603537;
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
727 %! 0.383594 0.291238 0.085574;
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
728 %! 0.265712 0.268003 0.238409;
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
729 %! 0.669966 0.743851 0.445057 ];
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
730 %!
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
731 %! u = [0.85082;
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
732 %! 0.76426;
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
733 %! 0.42883;
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
734 %! 0.53010;
10080
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
735 %! 0.80683 ];
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
736 %!
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
737 %! v = [0.98810;
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
738 %! 0.24295;
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
739 %! 0.43167 ];
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
740 %!
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
741 %! Ac = [0.620405 + 0.956953i 0.480013 + 0.048806i 0.402627 + 0.338171i;
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
742 %! 0.589077 + 0.658457i 0.013205 + 0.279323i 0.229284 + 0.721929i;
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
743 %! 0.092758 + 0.345687i 0.928679 + 0.241052i 0.764536 + 0.832406i;
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
744 %! 0.912098 + 0.721024i 0.049018 + 0.269452i 0.730029 + 0.796517i;
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
745 %! 0.112849 + 0.603871i 0.486352 + 0.142337i 0.355646 + 0.151496i ];
10080
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
746 %!
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
747 %! uc = [0.20351 + 0.05401i;
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
748 %! 0.13141 + 0.43708i;
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
749 %! 0.29808 + 0.08789i;
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
750 %! 0.69821 + 0.38844i;
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
751 %! 0.74871 + 0.25821i ];
10080
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
752 %!
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
753 %! vc = [0.85839 + 0.29468i;
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
754 %! 0.20820 + 0.93090i;
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
755 %! 0.86184 + 0.34689i ];
10080
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
756 %!
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
757
10094
ab1101011a6d lu.cc: avoid test failures if HAVE_QRUPDATE_LUU is not defined
John W. Eaton <jwe@octave.org>
parents: 10080
diff changeset
758 %!testif HAVE_QRUPDATE_LUU
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
759 %! [L,U,P] = lu (A);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
760 %! [L,U] = luupdate (L,U,P*u,v);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
761 %! assert (norm (vec (tril (L)-L), Inf) == 0);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
762 %! assert (norm (vec (triu (U)-U), Inf) == 0);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
763 %! assert (norm (vec (P'*L*U - A - u*v.'), Inf) < norm (A)*1e1*eps);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
764 %!
10094
ab1101011a6d lu.cc: avoid test failures if HAVE_QRUPDATE_LUU is not defined
John W. Eaton <jwe@octave.org>
parents: 10080
diff changeset
765 %!testif HAVE_QRUPDATE_LUU
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
766 %! [L,U,P] = lu (Ac);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
767 %! [L,U] = luupdate (L,U,P*uc,vc);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
768 %! assert (norm (vec (tril (L)-L), Inf) == 0);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
769 %! assert (norm (vec (triu (U)-U), Inf) == 0);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
770 %! assert (norm (vec (P'*L*U - Ac - uc*vc.'), Inf) < norm (Ac)*1e1*eps);
10080
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
771
10094
ab1101011a6d lu.cc: avoid test failures if HAVE_QRUPDATE_LUU is not defined
John W. Eaton <jwe@octave.org>
parents: 10080
diff changeset
772 %!testif HAVE_QRUPDATE_LUU
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
773 %! [L,U,P] = lu (single (A));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
774 %! [L,U] = luupdate (L,U,P*single (u), single (v));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
775 %! assert (norm (vec (tril (L)-L), Inf) == 0);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
776 %! assert (norm (vec (triu (U)-U), Inf) == 0);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
777 %! assert (norm (vec (P'*L*U - single (A) - single (u)*single (v).'), Inf) < norm (single (A))*1e1*eps ("single"));
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
778 %!
10094
ab1101011a6d lu.cc: avoid test failures if HAVE_QRUPDATE_LUU is not defined
John W. Eaton <jwe@octave.org>
parents: 10080
diff changeset
779 %!testif HAVE_QRUPDATE_LUU
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
780 %! [L,U,P] = lu (single (Ac));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
781 %! [L,U] = luupdate (L,U,P*single (uc),single (vc));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
782 %! assert (norm (vec (tril (L)-L), Inf) == 0);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
783 %! assert (norm (vec (triu (U)-U), Inf) == 0);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
784 %! assert (norm (vec (P'*L*U - single (Ac) - single (uc)*single (vc).'), Inf) < norm (single (Ac))*1e1*eps ("single"));
10080
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
785
10094
ab1101011a6d lu.cc: avoid test failures if HAVE_QRUPDATE_LUU is not defined
John W. Eaton <jwe@octave.org>
parents: 10080
diff changeset
786 %!testif HAVE_QRUPDATE_LUU
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
787 %! [L,U,P] = lu (A);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
788 %! [L,U,P] = luupdate (L,U,P,u,v);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
789 %! assert (norm (vec (tril (L)-L), Inf) == 0);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
790 %! assert (norm (vec (triu (U)-U), Inf) == 0);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
791 %! assert (norm (vec (P'*L*U - A - u*v.'), Inf) < norm (A)*1e1*eps);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
792 %!
10094
ab1101011a6d lu.cc: avoid test failures if HAVE_QRUPDATE_LUU is not defined
John W. Eaton <jwe@octave.org>
parents: 10080
diff changeset
793 %!testif HAVE_QRUPDATE_LUU
18849
aa9ca67f09fb make all permutation matrices column permutations (bug #42418)
David Spies <dnspies@gmail.com>
parents: 18678
diff changeset
794 %! [L,U,P] = lu (A);
aa9ca67f09fb make all permutation matrices column permutations (bug #42418)
David Spies <dnspies@gmail.com>
parents: 18678
diff changeset
795 %! [~,ordcols] = max (P,[],1);
aa9ca67f09fb make all permutation matrices column permutations (bug #42418)
David Spies <dnspies@gmail.com>
parents: 18678
diff changeset
796 %! [~,ordrows] = max (P,[],2);
aa9ca67f09fb make all permutation matrices column permutations (bug #42418)
David Spies <dnspies@gmail.com>
parents: 18678
diff changeset
797 %! P1 = eye (size(P))(:,ordcols);
aa9ca67f09fb make all permutation matrices column permutations (bug #42418)
David Spies <dnspies@gmail.com>
parents: 18678
diff changeset
798 %! P2 = eye (size(P))(ordrows,:);
aa9ca67f09fb make all permutation matrices column permutations (bug #42418)
David Spies <dnspies@gmail.com>
parents: 18678
diff changeset
799 %! assert(P1 == P);
aa9ca67f09fb make all permutation matrices column permutations (bug #42418)
David Spies <dnspies@gmail.com>
parents: 18678
diff changeset
800 %! assert(P2 == P);
aa9ca67f09fb make all permutation matrices column permutations (bug #42418)
David Spies <dnspies@gmail.com>
parents: 18678
diff changeset
801 %! [L,U,P] = luupdate (L,U,P,u,v);
aa9ca67f09fb make all permutation matrices column permutations (bug #42418)
David Spies <dnspies@gmail.com>
parents: 18678
diff changeset
802 %! [L,U,P1] = luupdate (L,U,P1,u,v);
aa9ca67f09fb make all permutation matrices column permutations (bug #42418)
David Spies <dnspies@gmail.com>
parents: 18678
diff changeset
803 %! [L,U,P2] = luupdate (L,U,P2,u,v);
aa9ca67f09fb make all permutation matrices column permutations (bug #42418)
David Spies <dnspies@gmail.com>
parents: 18678
diff changeset
804 %! assert(P1 == P);
aa9ca67f09fb make all permutation matrices column permutations (bug #42418)
David Spies <dnspies@gmail.com>
parents: 18678
diff changeset
805 %! assert(P2 == P);
aa9ca67f09fb make all permutation matrices column permutations (bug #42418)
David Spies <dnspies@gmail.com>
parents: 18678
diff changeset
806 %!
aa9ca67f09fb make all permutation matrices column permutations (bug #42418)
David Spies <dnspies@gmail.com>
parents: 18678
diff changeset
807 %!testif HAVE_QRUPDATE_LUU
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
808 %! [L,U,P] = lu (Ac);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
809 %! [L,U,P] = luupdate (L,U,P,uc,vc);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
810 %! assert (norm (vec (tril (L)-L), Inf) == 0);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
811 %! assert (norm (vec (triu (U)-U), Inf) == 0);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
812 %! assert (norm (vec (P'*L*U - Ac - uc*vc.'), Inf) < norm (Ac)*1e1*eps);
10080
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
813
10094
ab1101011a6d lu.cc: avoid test failures if HAVE_QRUPDATE_LUU is not defined
John W. Eaton <jwe@octave.org>
parents: 10080
diff changeset
814 %!testif HAVE_QRUPDATE_LUU
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
815 %! [L,U,P] = lu (single (A));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
816 %! [L,U,P] = luupdate (L,U,P,single (u),single (v));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
817 %! assert (norm (vec (tril (L)-L), Inf) == 0);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
818 %! assert (norm (vec (triu (U)-U), Inf) == 0);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
819 %! assert (norm (vec (P'*L*U - single (A) - single (u)*single (v).'), Inf) < norm (single (A))*1e1*eps ("single"));
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
820 %!
10094
ab1101011a6d lu.cc: avoid test failures if HAVE_QRUPDATE_LUU is not defined
John W. Eaton <jwe@octave.org>
parents: 10080
diff changeset
821 %!testif HAVE_QRUPDATE_LUU
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
822 %! [L,U,P] = lu (single (Ac));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
823 %! [L,U,P] = luupdate (L,U,P,single (uc),single (vc));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
824 %! assert (norm (vec (tril (L)-L), Inf) == 0);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
825 %! assert (norm (vec (triu (U)-U), Inf) == 0);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
826 %! assert (norm (vec (P'*L*U - single (Ac) - single (uc)*single (vc).'), Inf) < norm (single (Ac))*1e1*eps ("single"));
10080
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
827 */