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maint: Clean up extra spaces before/after parentheses.
author Rik <rik@octave.org>
date Fri, 25 Apr 2014 13:25:25 -0700
parents 4e0d72145c5a
children aa9ca67f09fb
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2
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3 Copyright (C) 1996-2013 John W. Eaton
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4
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5 This file is part of Octave.
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6
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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
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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 "CmplxLU.h"
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28 #include "dbleLU.h"
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29 #include "fCmplxLU.h"
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30 #include "floatLU.h"
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31 #include "SparseCmplxLU.h"
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32 #include "SparsedbleLU.h"
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33
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34 #include "defun.h"
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35 #include "error.h"
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36 #include "gripes.h"
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37 #include "oct-obj.h"
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38 #include "utils.h"
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39 #include "ov-re-sparse.h"
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40 #include "ov-cx-sparse.h"
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41
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42 template <class MT>
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43 static octave_value
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44 get_lu_l (const base_lu<MT>& fact)
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45 {
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46 MT L = fact.L ();
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47 if (L.is_square ())
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48 return octave_value (L, MatrixType (MatrixType::Lower));
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49 else
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50 return L;
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51 }
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52
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53 template <class MT>
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54 static octave_value
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55 get_lu_u (const base_lu<MT>& fact)
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56 {
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57 MT U = fact.U ();
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58 if (U.is_square () && fact.regular ())
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59 return octave_value (U, MatrixType (MatrixType::Upper));
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60 else
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61 return U;
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62 }
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63
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64 DEFUN (lu, args, nargout,
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65 "-*- texinfo -*-\n\
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66 @deftypefn {Built-in Function} {[@var{L}, @var{U}] =} lu (@var{A})\n\
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67 @deftypefnx {Built-in Function} {[@var{L}, @var{U}, @var{P}] =} lu (@var{A})\n\
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68 @deftypefnx {Built-in Function} {[@var{L}, @var{U}, @var{P}, @var{Q}] =} lu (@var{S})\n\
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69 @deftypefnx {Built-in Function} {[@var{L}, @var{U}, @var{P}, @var{Q}, @var{R}] =} lu (@var{S})\n\
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70 @deftypefnx {Built-in Function} {[@dots{}] =} lu (@var{S}, @var{thres})\n\
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71 @deftypefnx {Built-in Function} {@var{y} =} lu (@dots{})\n\
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72 @deftypefnx {Built-in Function} {[@dots{}] =} lu (@dots{}, \"vector\")\n\
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73 @cindex LU decomposition\n\
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74 Compute the LU@tie{}decomposition of @var{A}. If @var{A} is full\n\
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75 subroutines from\n\
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76 @sc{lapack} are used and if @var{A} is sparse then @sc{umfpack} is used. The\n\
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77 result is returned in a permuted form, according to the optional return\n\
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78 value @var{P}. For example, given the matrix @code{a = [1, 2; 3, 4]},\n\
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79 \n\
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80 @example\n\
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81 [l, u, p] = lu (@var{a})\n\
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82 @end example\n\
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83 \n\
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84 @noindent\n\
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85 returns\n\
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86 \n\
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87 @example\n\
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88 @group\n\
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89 l =\n\
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90 \n\
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91 1.00000 0.00000\n\
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92 0.33333 1.00000\n\
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93 \n\
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94 u =\n\
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95 \n\
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96 3.00000 4.00000\n\
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97 0.00000 0.66667\n\
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98 \n\
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99 p =\n\
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100 \n\
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101 0 1\n\
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102 1 0\n\
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103 @end group\n\
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104 @end example\n\
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105 \n\
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106 The matrix is not required to be square.\n\
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107 \n\
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108 When called with two or three output arguments and a spare input matrix,\n\
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109 @code{lu} does not attempt to perform sparsity preserving column\n\
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110 permutations. Called with a fourth output argument, the sparsity\n\
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111 preserving column transformation @var{Q} is returned, such that\n\
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112 @code{@var{P} * @var{A} * @var{Q} = @var{L} * @var{U}}.\n\
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113 \n\
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114 Called with a fifth output argument and a sparse input matrix,\n\
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115 @code{lu} attempts to use a scaling factor @var{R} on the input matrix\n\
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116 such that\n\
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117 @code{@var{P} * (@var{R} \\ @var{A}) * @var{Q} = @var{L} * @var{U}}.\n\
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118 This typically leads to a sparser and more stable factorization.\n\
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119 \n\
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120 An additional input argument @var{thres}, that defines the pivoting\n\
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121 threshold can be given. @var{thres} can be a scalar, in which case\n\
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122 it defines the @sc{umfpack} pivoting tolerance for both symmetric and\n\
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123 unsymmetric cases. If @var{thres} is a 2-element vector, then the first\n\
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124 element defines the pivoting tolerance for the unsymmetric @sc{umfpack}\n\
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125 pivoting strategy and the second for the symmetric strategy. By default,\n\
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126 the values defined by @code{spparms} are used ([0.1, 0.001]).\n\
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127 \n\
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128 Given the string argument @qcode{\"vector\"}, @code{lu} returns the values\n\
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129 of @var{P} and @var{Q} as vector values, such that for full matrix,\n\
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130 @code{@var{A} (@var{P},:) = @var{L} * @var{U}}, and @code{@var{R}(@var{P},:)\n\
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131 * @var{A} (:, @var{Q}) = @var{L} * @var{U}}.\n\
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132 \n\
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133 With two output arguments, returns the permuted forms of the upper and\n\
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parents: 11523
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134 lower triangular matrices, such that @code{@var{A} = @var{L} * @var{U}}.\n\
9209
923c7cb7f13f Simplify TeXinfo files by eliminating redundant @iftex followed by @tex construction.
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parents: 9065
diff changeset
135 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.
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parents: 11523
diff changeset
136 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
137 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>
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diff changeset
138 For both full and sparse matrices, @code{lu} loses the permutation\n\
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diff changeset
139 information.\n\
16920
53eaa83e4181 doc: Add seealso links between various factorization forms.
Rik <rik@octave.org>
parents: 15195
diff changeset
140 @seealso{luupdate, chol, hess, qr, qz, schur, svd}\n\
3372
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jwe
parents: 3014
diff changeset
141 @end deftypefn")
2928
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diff changeset
142 {
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
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diff changeset
143 octave_value_list retval;
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diff changeset
144 int nargin = args.length ();
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diff changeset
145 bool issparse = (nargin > 0 && args(0).is_sparse_type ());
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146 bool scale = (nargout == 5);
2928
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diff changeset
147
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148 if (nargin < 1 || (issparse && (nargin > 3 || nargout > 5))
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149 || (!issparse && (nargin > 2 || nargout > 3)))
2928
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150 {
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5457
diff changeset
151 print_usage ();
2928
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jwe
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diff changeset
152 return retval;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
153 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
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diff changeset
154
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diff changeset
155 bool vecout = false;
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
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diff changeset
156 Matrix thres;
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
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157
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
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diff changeset
158 int n = 1;
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
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diff changeset
159 while (n < nargin && ! error_state)
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diff changeset
160 {
18112
b560bac0fca2 maint: Don't use space between 'args' and '(' when doing indexing.
Rik <rik@octave.org>
parents: 18100
diff changeset
161 if (args(n).is_string ())
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diff changeset
162 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
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163 std::string tmp = args(n++).string_value ();
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164
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165 if (! error_state)
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diff changeset
166 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
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parents: 10094
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167 if (tmp.compare ("vector") == 0)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
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diff changeset
168 vecout = true;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
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parents: 10094
diff changeset
169 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
170 error ("lu: unrecognized string argument");
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
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parents: 10094
diff changeset
171 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
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172 }
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173 else
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diff changeset
174 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
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diff changeset
175 Matrix tmp = args(n++).matrix_value ();
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176
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diff changeset
177 if (! error_state)
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178 {
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179 if (!issparse)
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parents: 11523
diff changeset
180 error ("lu: can not define pivoting threshold THRES for full matrices");
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181 else if (tmp.nelem () == 1)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
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182 {
14854
5ae9f0f77635 maint: Use Octave coding conventions for coddling parenthis is DLD-FUNCTIONS directory
Rik <octave@nomad.inbox5.com>
parents: 14844
diff changeset
183 thres.resize (1,2);
10154
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184 thres(0) = tmp(0);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
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185 thres(1) = tmp(0);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
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diff changeset
186 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
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187 else if (tmp.nelem () == 2)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
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diff changeset
188 thres = tmp;
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diff changeset
189 else
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Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
190 error ("lu: expecting 2-element vector for THRES");
10154
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191 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
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diff changeset
192 }
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193 }
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
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diff changeset
194
2928
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diff changeset
195 octave_value arg = args(0);
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
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diff changeset
196
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
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diff changeset
197 octave_idx_type nr = arg.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
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diff changeset
198 octave_idx_type nc = arg.columns ();
2928
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diff changeset
199
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
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diff changeset
200 int arg_is_empty = empty_arg ("lu", nr, nc);
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
201
7515
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diff changeset
202 if (issparse)
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
203 {
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
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diff changeset
204 if (arg_is_empty < 0)
10154
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diff changeset
205 return retval;
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
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diff changeset
206 else if (arg_is_empty > 0)
10154
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diff changeset
207 return octave_value_list (5, SparseMatrix ());
7515
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diff changeset
208
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
209 if (arg.is_real_type ())
10154
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diff changeset
210 {
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
211
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
212 SparseMatrix m = arg.sparse_matrix_value ();
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
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diff changeset
213
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
214 if (nargout < 4)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
215 {
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
216
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
217 ColumnVector Qinit;
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
218 Qinit.resize (nc);
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
219 for (octave_idx_type i = 0; i < nc; i++)
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
220 Qinit (i) = i;
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
221 SparseLU fact (m, Qinit, thres, false, true);
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
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parents: 7017
diff changeset
222
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
223 if (nargout < 2)
14844
5bc9b9cb4362 maint: Use Octave coding conventions for cuddled parenthesis in retval assignments.
Rik <octave@nomad.inbox5.com>
parents: 14501
diff changeset
224 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
225 else
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
226 {
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
227
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
228 retval(1)
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
229 = octave_value (
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
230 fact.U () * fact.Pc_mat ().transpose (),
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
231 MatrixType (MatrixType::Permuted_Upper,
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
232 nc, fact.col_perm ()));
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
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diff changeset
233
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
234 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
235 SparseMatrix L = fact.L ();
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
236 if (nargout < 3)
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
237 retval(0)
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
238 = 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
239 MatrixType (MatrixType::Permuted_Lower,
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
240 nr, fact.row_perm ()));
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
241 else
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
242 {
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
243 retval(0) = L;
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
244 if (vecout)
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
245 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
246 else
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
247 retval(2) = P;
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
248 }
7515
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David Bateman <dbateman@free.fr>
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diff changeset
249
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
250 }
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
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diff changeset
251
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
252 }
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
253 else
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
254 {
7515
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diff changeset
255
10154
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John W. Eaton <jwe@octave.org>
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diff changeset
256 SparseLU fact (m, thres, scale);
2928
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jwe
parents:
diff changeset
257
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
258 if (scale)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
259 retval(4) = fact.R ();
7515
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diff changeset
260
10154
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parents: 10094
diff changeset
261 if (vecout)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
262 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
263 retval(3) = fact.Pc_vec ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
264 retval(2) = fact.Pr_vec ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
265 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
266 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
267 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
268 retval(3) = fact.Pc_mat ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
269 retval(2) = fact.Pr_mat ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
270 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
271 retval(1) = octave_value (fact.U (),
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
272 MatrixType (MatrixType::Upper));
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
273 retval(0) = octave_value (fact.L (),
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
274 MatrixType (MatrixType::Lower));
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
275 }
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
276
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
277 }
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
278 else if (arg.is_complex_type ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
279 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
280 SparseComplexMatrix m = arg.sparse_complex_matrix_value ();
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
281
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
282 if (nargout < 4)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
283 {
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
284
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
285 ColumnVector Qinit;
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
286 Qinit.resize (nc);
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
287 for (octave_idx_type i = 0; i < nc; i++)
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
288 Qinit (i) = i;
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
289 SparseComplexLU fact (m, Qinit, thres, false, true);
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
290
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
291 if (nargout < 2)
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
292
14844
5bc9b9cb4362 maint: Use Octave coding conventions for cuddled parenthesis in retval assignments.
Rik <octave@nomad.inbox5.com>
parents: 14501
diff changeset
293 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
294
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
295 else
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
296 {
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
297
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
298 retval(1)
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
299 = octave_value (
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
300 fact.U () * fact.Pc_mat ().transpose (),
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
301 MatrixType (MatrixType::Permuted_Upper,
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
302 nc, fact.col_perm ()));
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
303
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
304 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
305 SparseComplexMatrix L = fact.L ();
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
306 if (nargout < 3)
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
307 retval(0)
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
308 = 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
309 MatrixType (MatrixType::Permuted_Lower,
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
310 nr, fact.row_perm ()));
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
311 else
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
312 {
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
313 retval(0) = L;
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
parents: 18497
diff changeset
314 if (vecout)
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
315 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
316 else
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
317 retval(2) = P;
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
318 }
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
319
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
320 }
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
321
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
322 }
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
323 else
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
Michael C. Grant <mcg@cvxr.com>
parents: 17787
diff changeset
324 {
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
325
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
326 SparseComplexLU fact (m, thres, scale);
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
327
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
328 if (scale)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
329 retval(4) = fact.R ();
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
330
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
331 if (vecout)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
332 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
333 retval(3) = fact.Pc_vec ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
334 retval(2) = fact.Pr_vec ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
335 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
336 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
337 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
338 retval(3) = fact.Pc_mat ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
339 retval(2) = fact.Pr_mat ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
340 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
341 retval(1) = octave_value (fact.U (),
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
342 MatrixType (MatrixType::Upper));
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
343 retval(0) = octave_value (fact.L (),
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
344 MatrixType (MatrixType::Lower));
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
345 }
18427
93c019f00e59 maint: whitespace fixes for libinterp/corefcn/lu.cc
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 18426
diff changeset
346
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
347 }
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
348 else
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
349 gripe_wrong_type_arg ("lu", arg);
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
350 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
351 else
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
352 {
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
353 if (arg_is_empty < 0)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
354 return retval;
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
355 else if (arg_is_empty > 0)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
356 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
357
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
358 if (arg.is_real_type ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
359 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
360 if (arg.is_single_type ())
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
361 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
362 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
363
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
364 if (! error_state)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
365 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
366 FloatLU fact (m);
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
367
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
368 switch (nargout)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
369 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
370 case 0:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
371 case 1:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
372 retval(0) = fact.Y ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
373 break;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7515
diff changeset
374
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
375 case 2:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
376 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
377 PermMatrix P = fact.P ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
378 FloatMatrix L = P.transpose () * fact.L ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
379 retval(1) = get_lu_u (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
380 retval(0) = L;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
381 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
382 break;
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
383
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
384 case 3:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
385 default:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
386 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
387 if (vecout)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
388 retval(2) = fact.P_vec ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
389 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
390 retval(2) = fact.P ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
391 retval(1) = get_lu_u (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
392 retval(0) = get_lu_l (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
393 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
394 break;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
395 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
396 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
397 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
398 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
399 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
400 Matrix m = arg.matrix_value ();
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7515
diff changeset
401
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
402 if (! error_state)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
403 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
404 LU fact (m);
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
405
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
406 switch (nargout)
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 case 0:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
409 case 1:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
410 retval(0) = fact.Y ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
411 break;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7515
diff changeset
412
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
413 case 2:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
414 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
415 PermMatrix P = fact.P ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
416 Matrix L = P.transpose () * fact.L ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
417 retval(1) = get_lu_u (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
418 retval(0) = L;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
419 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
420 break;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7515
diff changeset
421
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
422 case 3:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
423 default:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
424 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
425 if (vecout)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
426 retval(2) = fact.P_vec ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
427 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
428 retval(2) = fact.P ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
429 retval(1) = get_lu_u (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
430 retval(0) = get_lu_l (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
431 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
432 break;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
433 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
434 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
435 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
436 }
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
437 else if (arg.is_complex_type ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
438 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
439 if (arg.is_single_type ())
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
440 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
441 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
442
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
443 if (! error_state)
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 FloatComplexLU fact (m);
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
446
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
447 switch (nargout)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
448 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
449 case 0:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
450 case 1:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
451 retval(0) = fact.Y ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
452 break;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7515
diff changeset
453
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
454 case 2:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
455 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
456 PermMatrix P = fact.P ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
457 FloatComplexMatrix L = P.transpose () * fact.L ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
458 retval(1) = get_lu_u (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
459 retval(0) = L;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
460 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
461 break;
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
462
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
463 case 3:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
464 default:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
465 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
466 if (vecout)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
467 retval(2) = fact.P_vec ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
468 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
469 retval(2) = fact.P ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
470 retval(1) = get_lu_u (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
471 retval(0) = get_lu_l (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
472 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
473 break;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
474 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
475 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
476 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
477 else
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 ComplexMatrix m = arg.complex_matrix_value ();
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7515
diff changeset
480
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
481 if (! error_state)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
482 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
483 ComplexLU fact (m);
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
484
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
485 switch (nargout)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
486 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
487 case 0:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
488 case 1:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
489 retval(0) = fact.Y ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
490 break;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7515
diff changeset
491
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
492 case 2:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
493 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
494 PermMatrix P = fact.P ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
495 ComplexMatrix L = P.transpose () * fact.L ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
496 retval(1) = get_lu_u (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
497 retval(0) = L;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
498 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
499 break;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7515
diff changeset
500
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
501 case 3:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
502 default:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
503 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
504 if (vecout)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
505 retval(2) = fact.P_vec ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
506 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
507 retval(2) = fact.P ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
508 retval(1) = get_lu_u (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
509 retval(0) = get_lu_l (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
510 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
511 break;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
512 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
513 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
514 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
515 }
7515
f3c00dc0912b Eliminate the rest of the dispatched sparse functions
David Bateman <dbateman@free.fr>
parents: 7017
diff changeset
516 else
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
517 gripe_wrong_type_arg ("lu", arg);
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
518 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
519
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
520 return retval;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
521 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
522
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
523 /*
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
524 %!assert(lu ([1, 2; 3, 4]), [3, 4; 1/3, 2/3], eps);
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
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
527 %! [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
528 %! 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
529 %! 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
530
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
531 %!test
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
532 %! [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
533 %! 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
534 %! 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
535 %! 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
536
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
537 %!test
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
538 %! [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
539 %! 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
540 %! 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
541 %! 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
542
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
543 %!test
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
544 %! [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
545 %! 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
546 %! 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
547 %! 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
548
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
549 %!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
550
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
551 %!test
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
552 %! [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
553 %! assert (l, single ([1/3, 1; 1, 0]), sqrt (eps ("single")));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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diff changeset
554 %! assert (u, single ([3, 4; 0, 2/3]), sqrt (eps ("single")));
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555
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
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diff changeset
556 %!test
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diff changeset
557 %! [l, u, p] = lu (single ([1, 2; 3, 4]));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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diff changeset
558 %! assert (l, single ([1, 0; 1/3, 1]), sqrt (eps ("single")));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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parents: 14361
diff changeset
559 %! 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
560 %! assert (p(:,:), single ([0, 1; 1, 0]), sqrt (eps ("single")));
7814
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diff changeset
561
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
562 %!test
14501
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diff changeset
563 %! [l, u, p] = lu (single ([1, 2; 3, 4]), "vector");
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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diff changeset
564 %! assert (l, single ([1, 0; 1/3, 1]), sqrt (eps ("single")));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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diff changeset
565 %! 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
566 %! assert (p, single ([2;1]), sqrt (eps ("single")));
7814
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David Bateman <dbateman@free.fr>
parents: 7789
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567
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
568 %!test
14501
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parents: 14361
diff changeset
569 %! [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
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570 %! 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>
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571 %! assert (u, single ([5, 6; 0, 4/5]), sqrt (eps ("single")));
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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572 %! assert (p(:,:), single ([0, 0, 1; 1, 0, 0; 0 1 0]), sqrt (eps ("single")));
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David Bateman <dbateman@free.fr>
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diff changeset
573
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diff changeset
574 %!error lu ()
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diff changeset
575 %!error <can not define pivoting threshold> lu ([1, 2; 3, 4], 2)
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
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diff changeset
576
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Mike Miller <mtmiller@ieee.org>
parents: 18427
diff changeset
577 %!testif HAVE_UMFPACK
18425
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diff changeset
578 %! Bi = [1 2 3 4 5 2 3 6 7 8 4 5 7 8 9];
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diff changeset
579 %! Bj = [1 3 4 5 6 7 8 9 11 12 13 14 15 16 17];
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diff changeset
580 %! 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
581 %! B = sparse (Bi, Bj, Bv);
93c019f00e59 maint: whitespace fixes for libinterp/corefcn/lu.cc
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 18426
diff changeset
582 %! [L, U] = lu (B);
18426
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Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 18425
diff changeset
583 %! assert (L*U, B);
18427
93c019f00e59 maint: whitespace fixes for libinterp/corefcn/lu.cc
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 18426
diff changeset
584 %! [L, U, P] = lu(B);
18426
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Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 18425
diff changeset
585 %! assert (P'*L*U, B);
18427
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diff changeset
586 %! [L, U, P, Q] = lu (B);
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diff changeset
587 %! assert (P'*L*U*Q', B);
18425
2a45b6b87bee correct numerical errors in sparse LU factorization (bug #41116).
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diff changeset
588
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diff changeset
589 */
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590
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591 static
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592 bool check_lu_dims (const octave_value& l, const octave_value& u,
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593 const octave_value& p)
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594 {
18100
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diff changeset
595 octave_idx_type m = l.rows ();
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diff changeset
596 octave_idx_type k = u.rows ();
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diff changeset
597 octave_idx_type n = u.columns ();
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598 return ((l.ndims () == 2 && u.ndims () == 2 && k == l.columns ())
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diff changeset
599 && k == std::min (m, n) &&
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600 (p.is_undefined () || p.rows () == m));
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601 }
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diff changeset
602
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Rik <rik@octave.org>
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diff changeset
603 DEFUN (luupdate, args, ,
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604 "-*- texinfo -*-\n\
15039
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Rik <rik@octave.org>
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diff changeset
605 @deftypefn {Built-in Function} {[@var{L}, @var{U}] =} luupdate (@var{L}, @var{U}, @var{x}, @var{y})\n\
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diff changeset
606 @deftypefnx {Built-in Function} {[@var{L}, @var{U}, @var{P}] =} luupdate (@var{L}, @var{U}, @var{P}, @var{x}, @var{y})\n\
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diff changeset
607 Given an LU@tie{}factorization of a real or complex matrix\n\
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diff changeset
608 @w{@var{A} = @var{L}*@var{U}}, @var{L}@tie{}lower unit trapezoidal and\n\
f8e2e9fdaa8f document luupdate
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diff changeset
609 @var{U}@tie{}upper trapezoidal, return the LU@tie{}factorization\n\
f8e2e9fdaa8f document luupdate
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diff changeset
610 of @w{@var{A} + @var{x}*@var{y}.'}, where @var{x} and @var{y} are\n\
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diff changeset
611 column vectors (rank-1 update) or matrices with equal number of columns\n\
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diff changeset
612 (rank-k update).\n\
f8e2e9fdaa8f document luupdate
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diff changeset
613 Optionally, row-pivoted updating can be used by supplying\n\
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diff changeset
614 a row permutation (pivoting) matrix @var{P};\n\
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diff changeset
615 in that case, an updated permutation matrix is returned.\n\
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diff changeset
616 Note that if @var{L}, @var{U}, @var{P} is a pivoted LU@tie{}factorization\n\
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617 as obtained by @code{lu}:\n\
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618 \n\
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diff changeset
619 @example\n\
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diff changeset
620 [@var{L}, @var{U}, @var{P}] = lu (@var{A});\n\
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diff changeset
621 @end example\n\
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622 \n\
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623 @noindent\n\
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Rik <rik@octave.org>
parents: 16920
diff changeset
624 then a factorization of @tcode{@var{A}+@var{x}*@var{y}.'} can be obtained\n\
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diff changeset
625 either as\n\
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diff changeset
626 \n\
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diff changeset
627 @example\n\
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parents: 14138
diff changeset
628 [@var{L1}, @var{U1}] = lu (@var{L}, @var{U}, @var{P}*@var{x}, @var{y})\n\
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diff changeset
629 @end example\n\
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630 \n\
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631 @noindent\n\
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632 or\n\
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633 \n\
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diff changeset
634 @example\n\
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diff changeset
635 [@var{L1}, @var{U1}, @var{P1}] = lu (@var{L}, @var{U}, @var{P}, @var{x}, @var{y})\n\
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636 @end example\n\
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637 \n\
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diff changeset
638 The first form uses the unpivoted algorithm, which is faster, but less\n\
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
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diff changeset
639 stable. The second form uses a slower pivoted algorithm, which is more\n\
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diff changeset
640 stable.\n\
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641 \n\
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diff changeset
642 The matrix case is done as a sequence of rank-1 updates;\n\
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diff changeset
643 thus, for large enough k, it will be both faster and more accurate to\n\
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diff changeset
644 recompute the factorization from scratch.\n\
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diff changeset
645 @seealso{lu, cholupdate, qrupdate}\n\
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diff changeset
646 @end deftypefn")
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647 {
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648 octave_idx_type nargin = args.length ();
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diff changeset
649 octave_value_list retval;
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650
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651 bool pivoted = nargin == 5;
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652
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653 if (nargin != 4 && nargin != 5)
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654 {
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655 print_usage ();
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656 return retval;
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657 }
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658
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659 octave_value argl = args(0);
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660 octave_value argu = args(1);
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661 octave_value argp = pivoted ? args(2) : octave_value ();
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662 octave_value argx = args(2 + pivoted);
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diff changeset
663 octave_value argy = args(3 + pivoted);
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diff changeset
664
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665 if (argl.is_numeric_type () && argu.is_numeric_type ()
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666 && argx.is_numeric_type () && argy.is_numeric_type ()
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667 && (! pivoted || argp.is_perm_matrix ()))
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diff changeset
668 {
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diff changeset
669 if (check_lu_dims (argl, argu, argp))
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diff changeset
670 {
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diff changeset
671 PermMatrix P = (pivoted
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672 ? argp.perm_matrix_value ()
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673 : PermMatrix::eye (argl.rows ()));
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diff changeset
674
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675 if (argl.is_real_type ()
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676 && argu.is_real_type ()
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677 && argx.is_real_type ()
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678 && argy.is_real_type ())
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679 {
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
680 // all real case
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
681 if (argl.is_single_type ()
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
682 || argu.is_single_type ()
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
683 || argx.is_single_type ()
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
684 || argy.is_single_type ())
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
685 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
686 FloatMatrix L = argl.float_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
687 FloatMatrix U = argu.float_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
688 FloatMatrix x = argx.float_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
689 FloatMatrix y = argy.float_matrix_value ();
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
690
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
691 FloatLU fact (L, U, P);
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
692 if (pivoted)
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
693 fact.update_piv (x, y);
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
694 else
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
695 fact.update (x, y);
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
696
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
697 if (pivoted)
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
698 retval(2) = fact.P ();
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
699 retval(1) = get_lu_u (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
700 retval(0) = get_lu_l (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
701 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
702 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
703 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
704 Matrix L = argl.matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
705 Matrix U = argu.matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
706 Matrix x = argx.matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
707 Matrix y = argy.matrix_value ();
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
708
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
709 LU fact (L, U, P);
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
710 if (pivoted)
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
711 fact.update_piv (x, y);
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
712 else
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
713 fact.update (x, y);
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
714
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
715 if (pivoted)
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
716 retval(2) = fact.P ();
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
717 retval(1) = get_lu_u (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
718 retval(0) = get_lu_l (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
719 }
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
720 }
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
721 else
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
722 {
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
723 // complex case
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
724 if (argl.is_single_type ()
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
725 || argu.is_single_type ()
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
726 || argx.is_single_type ()
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
727 || argy.is_single_type ())
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
728 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
729 FloatComplexMatrix L = argl.float_complex_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
730 FloatComplexMatrix U = argu.float_complex_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
731 FloatComplexMatrix x = argx.float_complex_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
732 FloatComplexMatrix y = argy.float_complex_matrix_value ();
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
733
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
734 FloatComplexLU fact (L, U, P);
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
735 if (pivoted)
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
736 fact.update_piv (x, y);
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
737 else
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
738 fact.update (x, y);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
739
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
740 if (pivoted)
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
741 retval(2) = fact.P ();
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
742 retval(1) = get_lu_u (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
743 retval(0) = get_lu_l (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
744 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
745 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
746 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
747 ComplexMatrix L = argl.complex_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
748 ComplexMatrix U = argu.complex_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
749 ComplexMatrix x = argx.complex_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
750 ComplexMatrix y = argy.complex_matrix_value ();
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
751
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
752 ComplexLU fact (L, U, P);
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
753 if (pivoted)
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
754 fact.update_piv (x, y);
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
755 else
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
756 fact.update (x, y);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
757
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
758 if (pivoted)
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
759 retval(2) = fact.P ();
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
760 retval(1) = get_lu_u (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
761 retval(0) = get_lu_l (fact);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10094
diff changeset
762 }
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
763 }
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
764 }
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
765 else
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
766 error ("luupdate: dimension mismatch");
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
767 }
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
768 else
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
769 error ("luupdate: L, U, X, and Y must be numeric");
9708
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
770
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
771 return retval;
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
772 }
6f3ffe11d926 implement luupdate
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
773
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
774 /*
10080
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
775 %!shared A, u, v, Ac, uc, vc
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
776 %! A = [0.091364 0.613038 0.999083;
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
777 %! 0.594638 0.425302 0.603537;
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
778 %! 0.383594 0.291238 0.085574;
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
779 %! 0.265712 0.268003 0.238409;
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
780 %! 0.669966 0.743851 0.445057 ];
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
781 %!
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
782 %! u = [0.85082;
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
783 %! 0.76426;
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
784 %! 0.42883;
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
785 %! 0.53010;
10080
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
786 %! 0.80683 ];
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
787 %!
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
788 %! v = [0.98810;
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
789 %! 0.24295;
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
790 %! 0.43167 ];
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
791 %!
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
792 %! 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
793 %! 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
794 %! 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
795 %! 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
796 %! 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
797 %!
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
798 %! 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
799 %! 0.13141 + 0.43708i;
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
800 %! 0.29808 + 0.08789i;
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
801 %! 0.69821 + 0.38844i;
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
802 %! 0.74871 + 0.25821i ];
10080
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
803 %!
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
804 %! 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
805 %! 0.20820 + 0.93090i;
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14361
diff changeset
806 %! 0.86184 + 0.34689i ];
10080
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
807 %!
cf70ee43077c add tests for LU updating
Jaroslav Hajek <highegg@gmail.com>
parents: 9724
diff changeset
808
10094
ab1101011a6d lu.cc: avoid test failures if HAVE_QRUPDATE_LUU is not defined
John W. Eaton <jwe@octave.org>
parents: 10080
diff changeset
809 %!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
810 %! [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
811 %! [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
812 %! 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
813 %! 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
814 %! 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
815 %!
10094
ab1101011a6d lu.cc: avoid test failures if HAVE_QRUPDATE_LUU is not defined
John W. Eaton <jwe@octave.org>
parents: 10080
diff changeset
816 %!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
817 %! [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
818 %! [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
819 %! 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
820 %! 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
821 %! 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
822
10094
ab1101011a6d lu.cc: avoid test failures if HAVE_QRUPDATE_LUU is not defined
John W. Eaton <jwe@octave.org>
parents: 10080
diff changeset
823 %!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
824 %! [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
825 %! [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
826 %! 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
827 %! 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
828 %! 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
829 %!
10094
ab1101011a6d lu.cc: avoid test failures if HAVE_QRUPDATE_LUU is not defined
John W. Eaton <jwe@octave.org>
parents: 10080
diff changeset
830 %!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
831 %! [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
832 %! [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
833 %! 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
834 %! 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
835 %! 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
836
10094
ab1101011a6d lu.cc: avoid test failures if HAVE_QRUPDATE_LUU is not defined
John W. Eaton <jwe@octave.org>
parents: 10080
diff changeset
837 %!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
838 %! [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
839 %! [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
840 %! 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
841 %! 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
842 %! 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
843 %!
10094
ab1101011a6d lu.cc: avoid test failures if HAVE_QRUPDATE_LUU is not defined
John W. Eaton <jwe@octave.org>
parents: 10080
diff changeset
844 %!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
845 %! [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
846 %! [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
847 %! 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
848 %! 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
849 %! 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
850
10094
ab1101011a6d lu.cc: avoid test failures if HAVE_QRUPDATE_LUU is not defined
John W. Eaton <jwe@octave.org>
parents: 10080
diff changeset
851 %!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
852 %! [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
853 %! [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
854 %! 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
855 %! 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
856 %! 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
857 %!
10094
ab1101011a6d lu.cc: avoid test failures if HAVE_QRUPDATE_LUU is not defined
John W. Eaton <jwe@octave.org>
parents: 10080
diff changeset
858 %!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
859 %! [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
860 %! [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
861 %! 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
862 %! 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
863 %! 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
864 */