Mercurial > octave
annotate libinterp/dldfcn/__eigs__.cc @ 20956:850e3d2533d4
maint: Eliminate more useless statements after error().
* __ilu__.cc, display.cc, file-io.cc, graphics.cc, graphics.in.h, hex2num.cc,
load-save.cc, ls-mat-ascii.cc, oct-errno.in.cc, pager.cc, sighandlers.cc,
sub2ind.cc, symtab.h, syscalls.cc, toplev.h, txt-eng-ft.cc, __eigs__.cc,
ov-bool-mat.cc, ov-classdef.h, ov-cx-mat.cc, ov-fcn-handle.cc,
ov-flt-cx-mat.cc, ov-flt-re-mat.cc, ov-re-mat.cc, ov-str-mat.cc, ov-struct.cc,
ov-typeinfo.cc, ov-usr-fcn.cc:
maint: Eliminate more useless statements after error().
author | Rik <rik@octave.org> |
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date | Sun, 20 Dec 2015 13:26:17 -0800 |
parents | 77f5591878bf |
children | e39e05d90788 |
rev | line source |
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1 /* |
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2 |
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3 Copyright (C) 2005-2015 David Bateman |
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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 "ov.h" |
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28 #include "defun-dld.h" |
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29 #include "error.h" |
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30 #include "gripes.h" |
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31 #include "quit.h" |
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32 #include "variables.h" |
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33 #include "ov-re-sparse.h" |
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34 #include "ov-cx-sparse.h" |
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35 #include "oct-map.h" |
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36 #include "pager.h" |
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37 #include "unwind-prot.h" |
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38 |
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39 #include "eigs-base.cc" |
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40 |
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41 // Global pointer for user defined function. |
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42 static octave_function *eigs_fcn = 0; |
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43 |
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44 // Have we warned about imaginary values returned from user function? |
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45 static bool warned_imaginary = false; |
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46 |
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47 // Is this a recursive call? |
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48 static int call_depth = 0; |
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49 |
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50 ColumnVector |
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51 eigs_func (const ColumnVector &x, int &eigs_error) |
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52 { |
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53 ColumnVector retval; |
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54 octave_value_list args; |
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55 args(0) = x; |
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56 |
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57 if (eigs_fcn) |
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58 { |
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59 octave_value_list tmp; |
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60 |
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61 try |
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62 { |
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63 tmp = eigs_fcn->do_multi_index_op (1, args); |
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64 } |
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65 catch (octave_execution_exception& e) |
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66 { |
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67 gripe_user_supplied_eval (e, "eigs"); |
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68 } |
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69 |
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70 if (tmp.length () && tmp(0).is_defined ()) |
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71 { |
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72 if (! warned_imaginary && tmp(0).is_complex_type ()) |
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73 { |
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74 warning ("eigs: ignoring imaginary part returned from user-supplied function"); |
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75 warned_imaginary = true; |
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76 } |
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77 |
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78 retval = tmp(0).xvector_value ("eigs: evaluation of user-supplied function failed"); |
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79 } |
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80 else |
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81 { |
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82 eigs_error = 1; |
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83 gripe_user_supplied_eval ("eigs"); |
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84 } |
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85 } |
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86 |
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87 return retval; |
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88 } |
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89 |
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90 ComplexColumnVector |
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91 eigs_complex_func (const ComplexColumnVector &x, int &eigs_error) |
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92 { |
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93 ComplexColumnVector retval; |
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94 octave_value_list args; |
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95 args(0) = x; |
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96 |
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97 if (eigs_fcn) |
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98 { |
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99 octave_value_list tmp; |
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100 |
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101 try |
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102 { |
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103 tmp = eigs_fcn->do_multi_index_op (1, args); |
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104 } |
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105 catch (octave_execution_exception& e) |
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106 { |
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107 gripe_user_supplied_eval (e, "eigs"); |
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108 } |
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109 |
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110 if (tmp.length () && tmp(0).is_defined ()) |
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111 { |
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112 retval = tmp(0).complex_vector_value ("eigs: evaluation of user-supplied function failed"); |
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113 } |
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114 else |
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115 { |
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116 eigs_error = 1; |
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117 gripe_user_supplied_eval ("eigs"); |
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118 } |
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119 } |
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120 |
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121 return retval; |
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122 } |
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123 |
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124 DEFUN_DLD (__eigs__, args, nargout, |
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125 "-*- texinfo -*-\n\ |
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126 @deftypefn {} {@var{d} =} __eigs__ (@var{A})\n\ |
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127 @deftypefnx {} {@var{d} =} __eigs__ (@var{A}, @var{k})\n\ |
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128 @deftypefnx {} {@var{d} =} __eigs__ (@var{A}, @var{k}, @var{sigma})\n\ |
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129 @deftypefnx {} {@var{d} =} __eigs__ (@var{A}, @var{k}, @var{sigma}, @var{opts})\n\ |
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130 @deftypefnx {} {@var{d} =} __eigs__ (@var{A}, @var{B})\n\ |
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131 @deftypefnx {} {@var{d} =} __eigs__ (@var{A}, @var{B}, @var{k})\n\ |
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132 @deftypefnx {} {@var{d} =} __eigs__ (@var{A}, @var{B}, @var{k}, @var{sigma})\n\ |
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133 @deftypefnx {} {@var{d} =} __eigs__ (@var{A}, @var{B}, @var{k}, @var{sigma}, @var{opts})\n\ |
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134 @deftypefnx {} {@var{d} =} __eigs__ (@var{af}, @var{n})\n\ |
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135 @deftypefnx {} {@var{d} =} __eigs__ (@var{af}, @var{n}, @var{B})\n\ |
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136 @deftypefnx {} {@var{d} =} __eigs__ (@var{af}, @var{n}, @var{k})\n\ |
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137 @deftypefnx {} {@var{d} =} __eigs__ (@var{af}, @var{n}, @var{B}, @var{k})\n\ |
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138 @deftypefnx {} {@var{d} =} __eigs__ (@var{af}, @var{n}, @var{k}, @var{sigma})\n\ |
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139 @deftypefnx {} {@var{d} =} __eigs__ (@var{af}, @var{n}, @var{B}, @var{k}, @var{sigma})\n\ |
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140 @deftypefnx {} {@var{d} =} __eigs__ (@var{af}, @var{n}, @var{k}, @var{sigma}, @var{opts})\n\ |
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141 @deftypefnx {} {@var{d} =} __eigs__ (@var{af}, @var{n}, @var{B}, @var{k}, @var{sigma}, @var{opts})\n\ |
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142 @deftypefnx {} {[@var{V}, @var{d}] =} __eigs__ (@var{A}, @dots{})\n\ |
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143 @deftypefnx {} {[@var{V}, @var{d}] =} __eigs__ (@var{af}, @var{n}, @dots{})\n\ |
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144 @deftypefnx {} {[@var{V}, @var{d}, @var{flag}] =} __eigs__ (@var{A}, @dots{})\n\ |
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145 @deftypefnx {} {[@var{V}, @var{d}, @var{flag}] =} __eigs__ (@var{af}, @var{n}, @dots{})\n\ |
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146 Undocumented internal function.\n\ |
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147 @end deftypefn") |
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148 { |
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149 #ifdef HAVE_ARPACK |
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150 int nargin = args.length (); |
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151 |
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152 if (nargin == 0) |
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153 print_usage (); |
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154 |
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155 octave_value_list retval; |
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156 |
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157 std::string fcn_name; |
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158 octave_idx_type n = 0; |
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159 octave_idx_type k = 6; |
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160 Complex sigma = 0.; |
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161 double sigmar, sigmai; |
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162 bool have_sigma = false; |
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163 std::string typ = "LM"; |
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164 Matrix amm, bmm, bmt; |
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165 ComplexMatrix acm, bcm, bct; |
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166 SparseMatrix asmm, bsmm, bsmt; |
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167 SparseComplexMatrix ascm, bscm, bsct; |
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168 int b_arg = 0; |
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169 bool have_b = false; |
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170 bool have_a_fun = false; |
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171 bool a_is_complex = false; |
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172 bool b_is_complex = false; |
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173 bool symmetric = false; |
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174 bool sym_tested = false; |
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175 bool cholB = false; |
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176 bool a_is_sparse = false; |
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177 ColumnVector permB; |
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178 int arg_offset = 0; |
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179 double tol = std::numeric_limits<double>::epsilon (); |
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180 int maxit = 300; |
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181 int disp = 0; |
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182 octave_idx_type p = -1; |
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183 ColumnVector resid; |
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184 ComplexColumnVector cresid; |
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185 octave_idx_type info = 1; |
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186 |
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187 warned_imaginary = false; |
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188 |
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189 unwind_protect frame; |
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190 |
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191 frame.protect_var (call_depth); |
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192 call_depth++; |
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193 |
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194 if (call_depth > 1) |
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195 error ("eigs: invalid recursive call"); |
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196 |
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197 if (args(0).is_function_handle () || args(0).is_inline_function () |
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198 || args(0).is_string ()) |
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199 { |
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200 if (args(0).is_string ()) |
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201 { |
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202 std::string name = args(0).string_value (); |
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203 std::string fname = "function y = "; |
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204 fcn_name = unique_symbol_name ("__eigs_fcn__"); |
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205 fname.append (fcn_name); |
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206 fname.append ("(x) y = "); |
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207 eigs_fcn = extract_function (args(0), "eigs", fcn_name, fname, |
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208 "; endfunction"); |
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209 } |
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210 else |
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211 eigs_fcn = args(0).function_value (); |
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212 |
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213 if (! eigs_fcn) |
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214 error ("eigs: unknown function"); |
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215 |
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216 if (nargin < 2) |
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217 error ("eigs: incorrect number of arguments"); |
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218 |
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219 n = args(1).nint_value (); |
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220 arg_offset = 1; |
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221 have_a_fun = true; |
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222 } |
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223 else |
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224 { |
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225 if (args(0).is_complex_type ()) |
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226 { |
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227 if (args(0).is_sparse_type ()) |
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228 { |
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229 ascm = (args(0).sparse_complex_matrix_value ()); |
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230 a_is_sparse = true; |
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231 } |
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232 else |
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233 acm = (args(0).complex_matrix_value ()); |
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234 a_is_complex = true; |
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235 symmetric = false; // ARPACK doesn't special case complex symmetric |
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236 sym_tested = true; |
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237 } |
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238 else |
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239 { |
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240 if (args(0).is_sparse_type ()) |
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241 { |
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242 asmm = (args(0).sparse_matrix_value ()); |
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243 a_is_sparse = true; |
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244 } |
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245 else |
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246 { |
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247 amm = (args(0).matrix_value ()); |
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248 } |
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249 } |
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250 } |
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251 |
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252 // Note hold off reading B until later to avoid issues of double |
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253 // copies of the matrix if B is full/real while A is complex. |
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254 if (nargin > 1 + arg_offset |
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255 && ! (args(1 + arg_offset).is_real_scalar ())) |
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256 { |
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257 if (args(1+arg_offset).is_complex_type ()) |
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258 { |
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259 b_arg = 1+arg_offset; |
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260 have_b = true; |
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261 b_is_complex = true; |
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262 arg_offset++; |
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263 } |
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264 else |
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265 { |
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266 b_arg = 1+arg_offset; |
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267 have_b = true; |
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268 arg_offset++; |
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269 } |
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270 } |
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271 |
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272 if (nargin > (1+arg_offset)) |
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273 k = args(1+arg_offset).nint_value (); |
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274 |
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275 if (nargin > (2+arg_offset)) |
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276 { |
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277 if (args(2+arg_offset).is_string ()) |
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278 { |
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279 typ = args(2+arg_offset).string_value (); |
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280 |
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281 // Use STL function to convert to upper case |
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282 transform (typ.begin (), typ.end (), typ.begin (), toupper); |
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283 |
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284 sigma = 0.; |
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285 } |
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286 else |
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287 { |
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288 sigma = args(2+arg_offset).xcomplex_value ("eigs: SIGMA must be a scalar or a string"); |
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289 |
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290 have_sigma = true; |
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291 } |
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292 } |
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293 |
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294 sigmar = std::real (sigma); |
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295 sigmai = std::imag (sigma); |
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296 |
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297 if (nargin > (3+arg_offset)) |
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298 { |
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299 if (! args(3+arg_offset).is_map ()) |
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300 error ("eigs: OPTS argument must be a structure"); |
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301 |
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302 octave_scalar_map map = args(3+arg_offset).xscalar_map_value ("eigs: OPTS argument must be a scalar structure"); |
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303 |
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304 octave_value tmp; |
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305 |
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306 // issym is ignored for complex matrix inputs |
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307 tmp = map.getfield ("issym"); |
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308 if (tmp.is_defined () && ! sym_tested) |
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309 { |
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310 symmetric = tmp.double_value () != 0.; |
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311 sym_tested = true; |
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312 } |
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313 |
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314 // isreal is ignored if A is not a function |
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315 tmp = map.getfield ("isreal"); |
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316 if (tmp.is_defined () && have_a_fun) |
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317 a_is_complex = ! (tmp.double_value () != 0.); |
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318 |
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319 tmp = map.getfield ("tol"); |
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320 if (tmp.is_defined ()) |
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321 tol = tmp.double_value (); |
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322 |
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323 tmp = map.getfield ("maxit"); |
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324 if (tmp.is_defined ()) |
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325 maxit = tmp.nint_value (); |
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326 |
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327 tmp = map.getfield ("p"); |
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328 if (tmp.is_defined ()) |
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329 p = tmp.nint_value (); |
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330 |
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331 tmp = map.getfield ("v0"); |
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332 if (tmp.is_defined ()) |
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333 { |
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334 if (a_is_complex || b_is_complex) |
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335 cresid = ComplexColumnVector (tmp.complex_vector_value ()); |
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336 else |
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337 resid = ColumnVector (tmp.vector_value ()); |
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338 } |
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339 |
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340 tmp = map.getfield ("disp"); |
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341 if (tmp.is_defined ()) |
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342 disp = tmp.nint_value (); |
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343 |
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344 tmp = map.getfield ("cholB"); |
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345 if (tmp.is_defined ()) |
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346 cholB = tmp.double_value () != 0.; |
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347 |
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348 tmp = map.getfield ("permB"); |
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349 if (tmp.is_defined ()) |
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350 permB = ColumnVector (tmp.vector_value ()) - 1.0; |
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351 } |
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352 |
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353 if (nargin > (4+arg_offset)) |
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354 error ("eigs: incorrect number of arguments"); |
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355 |
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356 // Test undeclared (no issym) matrix inputs for symmetry |
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357 if (! sym_tested && ! have_a_fun) |
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358 { |
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|
359 if (a_is_sparse) |
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360 symmetric = asmm.is_symmetric (); |
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361 else |
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362 symmetric = amm.is_symmetric (); |
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363 } |
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|
364 |
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365 if (have_b) |
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366 { |
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367 if (a_is_complex || b_is_complex) |
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368 { |
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369 if (a_is_sparse) |
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370 bscm = args(b_arg).sparse_complex_matrix_value (); |
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371 else |
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372 bcm = args(b_arg).complex_matrix_value (); |
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373 } |
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374 else |
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375 { |
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376 if (a_is_sparse) |
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377 bsmm = args(b_arg).sparse_matrix_value (); |
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378 else |
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379 bmm = args(b_arg).matrix_value (); |
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380 } |
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381 } |
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382 |
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383 // Mode 1 for SM mode seems unstable for some reason. |
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384 // Use Mode 3 instead, with sigma = 0. |
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385 if (! have_sigma && typ == "SM") |
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386 have_sigma = true; |
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387 |
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388 octave_idx_type nconv; |
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389 if (a_is_complex || b_is_complex) |
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390 { |
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391 ComplexMatrix eig_vec; |
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392 ComplexColumnVector eig_val; |
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393 |
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394 |
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395 if (have_a_fun) |
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396 nconv = EigsComplexNonSymmetricFunc |
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397 (eigs_complex_func, n, typ, sigma, k, p, info, eig_vec, |
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398 eig_val, cresid, octave_stdout, tol, (nargout > 1), cholB, |
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399 disp, maxit); |
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400 else if (have_sigma) |
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401 { |
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402 if (a_is_sparse) |
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403 nconv = EigsComplexNonSymmetricMatrixShift |
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404 (ascm, sigma, k, p, info, eig_vec, eig_val, bscm, permB, |
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405 cresid, octave_stdout, tol, (nargout > 1), cholB, disp, |
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406 maxit); |
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407 else |
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408 nconv = EigsComplexNonSymmetricMatrixShift |
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409 (acm, sigma, k, p, info, eig_vec, eig_val, bcm, permB, |
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410 cresid, octave_stdout, tol, (nargout > 1), cholB, disp, |
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411 maxit); |
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412 } |
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413 else |
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|
414 { |
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415 if (a_is_sparse) |
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416 nconv = EigsComplexNonSymmetricMatrix |
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417 (ascm, typ, k, p, info, eig_vec, eig_val, bscm, permB, |
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418 cresid, octave_stdout, tol, (nargout > 1), cholB, disp, |
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419 maxit); |
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420 else |
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421 nconv = EigsComplexNonSymmetricMatrix |
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|
422 (acm, typ, k, p, info, eig_vec, eig_val, bcm, permB, |
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423 cresid, octave_stdout, tol, (nargout > 1), cholB, disp, |
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424 maxit); |
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|
425 } |
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|
426 |
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|
427 if (nargout < 2) |
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428 retval(0) = eig_val; |
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|
429 else |
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diff
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|
430 retval = ovl (eig_vec, ComplexDiagMatrix (eig_val), double (info)); |
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|
431 } |
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|
432 else if (sigmai != 0.) |
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|
433 { |
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|
434 // Promote real problem to a complex one. |
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|
435 ComplexMatrix eig_vec; |
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|
436 ComplexColumnVector eig_val; |
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|
437 |
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|
438 if (have_a_fun) |
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diff
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|
439 nconv = EigsComplexNonSymmetricFunc |
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|
440 (eigs_complex_func, n, typ, sigma, k, p, info, eig_vec, |
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|
441 eig_val, cresid, octave_stdout, tol, (nargout > 1), cholB, |
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|
442 disp, maxit); |
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|
443 else |
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|
444 { |
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|
445 if (a_is_sparse) |
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|
446 nconv = EigsComplexNonSymmetricMatrixShift |
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|
447 (SparseComplexMatrix (asmm), sigma, k, p, info, eig_vec, |
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|
448 eig_val, SparseComplexMatrix (bsmm), permB, cresid, |
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|
449 octave_stdout, tol, (nargout > 1), cholB, disp, maxit); |
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diff
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|
450 else |
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|
451 nconv = EigsComplexNonSymmetricMatrixShift |
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diff
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|
452 (ComplexMatrix (amm), sigma, k, p, info, eig_vec, |
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|
453 eig_val, ComplexMatrix (bmm), permB, cresid, |
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|
454 octave_stdout, tol, (nargout > 1), cholB, disp, maxit); |
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|
455 } |
4bed806ee3d4
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diff
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|
456 |
4bed806ee3d4
eliminate more simple uses of error_state
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diff
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|
457 if (nargout < 2) |
4bed806ee3d4
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diff
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|
458 retval(0) = eig_val; |
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diff
changeset
|
459 else |
20871
1e4edab2d22f
2015 Code Sprint: __eigs__.cc: use ovl ().
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
460 retval = ovl (eig_vec, ComplexDiagMatrix (eig_val), double (info)); |
20556
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diff
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|
461 } |
4bed806ee3d4
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diff
changeset
|
462 else |
4bed806ee3d4
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diff
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|
463 { |
4bed806ee3d4
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19864
diff
changeset
|
464 if (symmetric) |
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diff
changeset
|
465 { |
4bed806ee3d4
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diff
changeset
|
466 Matrix eig_vec; |
4bed806ee3d4
eliminate more simple uses of error_state
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diff
changeset
|
467 ColumnVector eig_val; |
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diff
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|
468 |
10154
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|
469 if (have_a_fun) |
20556
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diff
changeset
|
470 nconv = EigsRealSymmetricFunc |
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diff
changeset
|
471 (eigs_func, n, typ, sigmar, k, p, info, eig_vec, |
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diff
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|
472 eig_val, resid, octave_stdout, tol, (nargout > 1), |
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eliminate more simple uses of error_state
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diff
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|
473 cholB, disp, maxit); |
10154
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diff
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|
474 else if (have_sigma) |
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10066
diff
changeset
|
475 { |
40dfc0c99116
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diff
changeset
|
476 if (a_is_sparse) |
20556
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diff
changeset
|
477 nconv = EigsRealSymmetricMatrixShift |
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diff
changeset
|
478 (asmm, sigmar, k, p, info, eig_vec, eig_val, bsmm, |
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diff
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|
479 permB, resid, octave_stdout, tol, (nargout > 1), |
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diff
changeset
|
480 cholB, disp, maxit); |
10154
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diff
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|
481 else |
20556
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diff
changeset
|
482 nconv = EigsRealSymmetricMatrixShift |
4bed806ee3d4
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diff
changeset
|
483 (amm, sigmar, k, p, info, eig_vec, eig_val, bmm, |
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eliminate more simple uses of error_state
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diff
changeset
|
484 permB, resid, octave_stdout, tol, (nargout > 1), |
4bed806ee3d4
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|
485 cholB, disp, maxit); |
10154
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486 } |
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487 else |
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488 { |
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489 if (a_is_sparse) |
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490 nconv = EigsRealSymmetricMatrix |
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491 (asmm, typ, k, p, info, eig_vec, eig_val, bsmm, |
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492 permB, resid, octave_stdout, tol, (nargout > 1), |
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493 cholB, disp, maxit); |
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494 else |
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495 nconv = EigsRealSymmetricMatrix |
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496 (amm, typ, k, p, info, eig_vec, eig_val, bmm, permB, |
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497 resid, octave_stdout, tol, (nargout > 1), cholB, |
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498 disp, maxit); |
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499 } |
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Add the eigs and svds functions
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500 |
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501 if (nargout < 2) |
14844
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502 retval(0) = eig_val; |
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503 else |
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2015 Code Sprint: __eigs__.cc: use ovl ().
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504 retval = ovl (eig_vec, DiagMatrix (eig_val), double (info)); |
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505 } |
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506 else |
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507 { |
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508 ComplexMatrix eig_vec; |
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509 ComplexColumnVector eig_val; |
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510 |
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511 if (have_a_fun) |
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512 nconv = EigsRealNonSymmetricFunc |
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513 (eigs_func, n, typ, sigmar, k, p, info, eig_vec, |
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514 eig_val, resid, octave_stdout, tol, (nargout > 1), |
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515 cholB, disp, maxit); |
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516 else if (have_sigma) |
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517 { |
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|
518 if (a_is_sparse) |
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519 nconv = EigsRealNonSymmetricMatrixShift |
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520 (asmm, sigmar, k, p, info, eig_vec, eig_val, bsmm, |
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|
521 permB, resid, octave_stdout, tol, (nargout > 1), |
4bed806ee3d4
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|
522 cholB, disp, maxit); |
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|
523 else |
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|
524 nconv = EigsRealNonSymmetricMatrixShift |
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diff
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|
525 (amm, sigmar, k, p, info, eig_vec, eig_val, bmm, |
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changeset
|
526 permB, resid, octave_stdout, tol, (nargout > 1), |
4bed806ee3d4
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diff
changeset
|
527 cholB, disp, maxit); |
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eliminate more simple uses of error_state
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diff
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|
528 } |
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|
529 else |
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diff
changeset
|
530 { |
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diff
changeset
|
531 if (a_is_sparse) |
20556
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diff
changeset
|
532 nconv = EigsRealNonSymmetricMatrix |
4bed806ee3d4
eliminate more simple uses of error_state
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diff
changeset
|
533 (asmm, typ, k, p, info, eig_vec, eig_val, bsmm, |
4bed806ee3d4
eliminate more simple uses of error_state
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diff
changeset
|
534 permB, resid, octave_stdout, tol, (nargout > 1), |
4bed806ee3d4
eliminate more simple uses of error_state
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diff
changeset
|
535 cholB, disp, maxit); |
10154
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diff
changeset
|
536 else |
20556
4bed806ee3d4
eliminate more simple uses of error_state
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diff
changeset
|
537 nconv = EigsRealNonSymmetricMatrix |
4bed806ee3d4
eliminate more simple uses of error_state
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diff
changeset
|
538 (amm, typ, k, p, info, eig_vec, eig_val, bmm, permB, |
4bed806ee3d4
eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
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diff
changeset
|
539 resid, octave_stdout, tol, (nargout > 1), cholB, |
4bed806ee3d4
eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
540 disp, maxit); |
10154
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John W. Eaton <jwe@octave.org>
parents:
10066
diff
changeset
|
541 } |
8417
654bcfb937bf
Add the eigs and svds functions
David Bateman <dbateman@free.fr>
parents:
diff
changeset
|
542 |
10154
40dfc0c99116
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John W. Eaton <jwe@octave.org>
parents:
10066
diff
changeset
|
543 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
|
544 retval(0) = eig_val; |
10154
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
545 else |
20871
1e4edab2d22f
2015 Code Sprint: __eigs__.cc: use ovl ().
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
546 retval = ovl (eig_vec, ComplexDiagMatrix (eig_val), double (info)); |
10154
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diff
changeset
|
547 } |
20556
4bed806ee3d4
eliminate more simple uses of error_state
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parents:
19864
diff
changeset
|
548 } |
8417
654bcfb937bf
Add the eigs and svds functions
David Bateman <dbateman@free.fr>
parents:
diff
changeset
|
549 |
20556
4bed806ee3d4
eliminate more simple uses of error_state
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19864
diff
changeset
|
550 if (nconv <= 0) |
4bed806ee3d4
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diff
changeset
|
551 warning ("eigs: None of the %d requested eigenvalues converged", k); |
4bed806ee3d4
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diff
changeset
|
552 else if (nconv < k) |
4bed806ee3d4
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diff
changeset
|
553 warning ("eigs: Only %d of the %d requested eigenvalues converged", |
4bed806ee3d4
eliminate more simple uses of error_state
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diff
changeset
|
554 nconv, k); |
8417
654bcfb937bf
Add the eigs and svds functions
David Bateman <dbateman@free.fr>
parents:
diff
changeset
|
555 |
654bcfb937bf
Add the eigs and svds functions
David Bateman <dbateman@free.fr>
parents:
diff
changeset
|
556 if (! fcn_name.empty ()) |
654bcfb937bf
Add the eigs and svds functions
David Bateman <dbateman@free.fr>
parents:
diff
changeset
|
557 clear_function (fcn_name); |
20825
66cd994d1b79
eliminate return statements after calls to error
John W. Eaton <jwe@octave.org>
parents:
20790
diff
changeset
|
558 |
20939
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20871
diff
changeset
|
559 return retval; |
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20871
diff
changeset
|
560 |
14144
834df9f10963
remove ARPACK files from sources and restore configure checks for external ARPACK library
John W. Eaton <jwe@octave.org>
parents:
14138
diff
changeset
|
561 #else |
834df9f10963
remove ARPACK files from sources and restore configure checks for external ARPACK library
John W. Eaton <jwe@octave.org>
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diff
changeset
|
562 error ("eigs: not available in this version of Octave"); |
834df9f10963
remove ARPACK files from sources and restore configure checks for external ARPACK library
John W. Eaton <jwe@octave.org>
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14138
diff
changeset
|
563 #endif |
8417
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Add the eigs and svds functions
David Bateman <dbateman@free.fr>
parents:
diff
changeset
|
564 } |