Mercurial > octave
annotate liboctave/numeric/gepbalance.cc @ 22329:7f3c7a8bd131
maint: Indent namespaces in liboctave/numeric files.
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 17 Aug 2016 10:55:38 -0400 |
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1 /* |
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2 |
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3 Copyright (C) 1994-2016 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 #if defined (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 <string> |
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28 #include <vector> |
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29 |
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30 #include "Array-util.h" |
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31 #include "CMatrix.h" |
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32 #include "dMatrix.h" |
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33 #include "fCMatrix.h" |
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34 #include "fMatrix.h" |
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35 #include "gepbalance.h" |
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36 #include "lo-lapack-proto.h" |
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37 #include "oct-locbuf.h" |
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38 |
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39 namespace octave |
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40 { |
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41 namespace math |
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42 { |
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43 template <> |
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44 octave_idx_type |
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45 gepbalance<Matrix>::init (const Matrix& a, const Matrix& b, |
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46 const std::string& balance_job) |
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47 { |
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48 octave_idx_type n = a.cols (); |
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49 |
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50 if (a.rows () != n) |
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51 (*current_liboctave_error_handler) ("GEPBALANCE requires square matrix"); |
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52 |
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53 if (a.dims () != b.dims ()) |
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54 octave::err_nonconformant ("GEPBALANCE", n, n, b.rows(), b.cols()); |
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55 |
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56 octave_idx_type info; |
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57 octave_idx_type ilo; |
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58 octave_idx_type ihi; |
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59 |
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60 OCTAVE_LOCAL_BUFFER (double, plscale, n); |
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61 OCTAVE_LOCAL_BUFFER (double, prscale, n); |
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62 OCTAVE_LOCAL_BUFFER (double, pwork, 6 * n); |
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63 |
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64 balanced_mat = a; |
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65 double *p_balanced_mat = balanced_mat.fortran_vec (); |
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66 balanced_mat2 = b; |
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67 double *p_balanced_mat2 = balanced_mat2.fortran_vec (); |
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68 |
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69 char job = balance_job[0]; |
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70 |
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71 F77_XFCN (dggbal, DGGBAL, (F77_CONST_CHAR_ARG2 (&job, 1), |
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72 n, p_balanced_mat, n, p_balanced_mat2, |
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73 n, ilo, ihi, plscale, prscale, pwork, info |
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74 F77_CHAR_ARG_LEN (1))); |
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75 |
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76 balancing_mat = Matrix (n, n, 0.0); |
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77 balancing_mat2 = Matrix (n, n, 0.0); |
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78 for (octave_idx_type i = 0; i < n; i++) |
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79 { |
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80 octave_quit (); |
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81 balancing_mat.elem (i ,i) = 1.0; |
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82 balancing_mat2.elem (i ,i) = 1.0; |
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83 } |
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84 |
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85 double *p_balancing_mat = balancing_mat.fortran_vec (); |
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86 double *p_balancing_mat2 = balancing_mat2.fortran_vec (); |
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87 |
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88 // first left |
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89 F77_XFCN (dggbak, DGGBAK, (F77_CONST_CHAR_ARG2 (&job, 1), |
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90 F77_CONST_CHAR_ARG2 ("L", 1), |
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91 n, ilo, ihi, plscale, prscale, |
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92 n, p_balancing_mat, n, info |
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93 F77_CHAR_ARG_LEN (1) |
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94 F77_CHAR_ARG_LEN (1))); |
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95 |
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96 // then right |
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97 F77_XFCN (dggbak, DGGBAK, (F77_CONST_CHAR_ARG2 (&job, 1), |
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98 F77_CONST_CHAR_ARG2 ("R", 1), |
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99 n, ilo, ihi, plscale, prscale, |
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100 n, p_balancing_mat2, n, info |
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101 F77_CHAR_ARG_LEN (1) |
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102 F77_CHAR_ARG_LEN (1))); |
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103 |
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104 return info; |
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105 } |
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106 |
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107 template <> |
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108 octave_idx_type |
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109 gepbalance<FloatMatrix>::init (const FloatMatrix& a, const FloatMatrix& b, |
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110 const std::string& balance_job) |
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111 { |
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112 octave_idx_type n = a.cols (); |
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113 |
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114 if (a.rows () != n) |
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115 (*current_liboctave_error_handler) |
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116 ("FloatGEPBALANCE requires square matrix"); |
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117 |
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118 if (a.dims () != b.dims ()) |
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119 octave::err_nonconformant ("FloatGEPBALANCE", n, n, b.rows(), b.cols()); |
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120 |
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121 octave_idx_type info; |
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122 octave_idx_type ilo; |
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123 octave_idx_type ihi; |
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124 |
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125 OCTAVE_LOCAL_BUFFER (float, plscale, n); |
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126 OCTAVE_LOCAL_BUFFER (float, prscale, n); |
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127 OCTAVE_LOCAL_BUFFER (float, pwork, 6 * n); |
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128 |
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129 balanced_mat = a; |
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130 float *p_balanced_mat = balanced_mat.fortran_vec (); |
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131 balanced_mat2 = b; |
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132 float *p_balanced_mat2 = balanced_mat2.fortran_vec (); |
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133 |
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134 char job = balance_job[0]; |
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135 |
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136 F77_XFCN (sggbal, SGGBAL, (F77_CONST_CHAR_ARG2 (&job, 1), |
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137 n, p_balanced_mat, n, p_balanced_mat2, |
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138 n, ilo, ihi, plscale, prscale, pwork, info |
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139 F77_CHAR_ARG_LEN (1))); |
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140 |
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141 balancing_mat = FloatMatrix (n, n, 0.0); |
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142 balancing_mat2 = FloatMatrix (n, n, 0.0); |
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143 for (octave_idx_type i = 0; i < n; i++) |
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144 { |
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145 octave_quit (); |
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146 balancing_mat.elem (i ,i) = 1.0; |
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147 balancing_mat2.elem (i ,i) = 1.0; |
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148 } |
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149 |
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150 float *p_balancing_mat = balancing_mat.fortran_vec (); |
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151 float *p_balancing_mat2 = balancing_mat2.fortran_vec (); |
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152 |
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153 // first left |
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154 F77_XFCN (sggbak, SGGBAK, (F77_CONST_CHAR_ARG2 (&job, 1), |
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155 F77_CONST_CHAR_ARG2 ("L", 1), |
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156 n, ilo, ihi, plscale, prscale, |
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157 n, p_balancing_mat, n, info |
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158 F77_CHAR_ARG_LEN (1) |
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159 F77_CHAR_ARG_LEN (1))); |
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160 |
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161 // then right |
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162 F77_XFCN (sggbak, SGGBAK, (F77_CONST_CHAR_ARG2 (&job, 1), |
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163 F77_CONST_CHAR_ARG2 ("R", 1), |
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164 n, ilo, ihi, plscale, prscale, |
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165 n, p_balancing_mat2, n, info |
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166 F77_CHAR_ARG_LEN (1) |
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167 F77_CHAR_ARG_LEN (1))); |
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168 |
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169 return info; |
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170 } |
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171 |
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172 template <> |
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173 octave_idx_type |
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174 gepbalance<ComplexMatrix>::init (const ComplexMatrix& a, |
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175 const ComplexMatrix& b, |
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176 const std::string& balance_job) |
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177 { |
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178 octave_idx_type n = a.cols (); |
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179 |
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180 if (a.rows () != n) |
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181 (*current_liboctave_error_handler) |
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182 ("ComplexGEPBALANCE requires square matrix"); |
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183 |
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184 if (a.dims () != b.dims ()) |
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185 octave::err_nonconformant ("ComplexGEPBALANCE", n, n, b.rows(), b.cols()); |
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186 |
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187 octave_idx_type info; |
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188 octave_idx_type ilo; |
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189 octave_idx_type ihi; |
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190 |
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191 OCTAVE_LOCAL_BUFFER (double, plscale, n); |
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192 OCTAVE_LOCAL_BUFFER (double, prscale, n); |
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193 OCTAVE_LOCAL_BUFFER (double, pwork, 6 * n); |
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194 |
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195 balanced_mat = a; |
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196 Complex *p_balanced_mat = balanced_mat.fortran_vec (); |
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197 balanced_mat2 = b; |
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198 Complex *p_balanced_mat2 = balanced_mat2.fortran_vec (); |
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199 |
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200 char job = balance_job[0]; |
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201 |
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202 F77_XFCN (zggbal, ZGGBAL, (F77_CONST_CHAR_ARG2 (&job, 1), |
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203 n, F77_DBLE_CMPLX_ARG (p_balanced_mat), n, F77_DBLE_CMPLX_ARG (p_balanced_mat2), |
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204 n, ilo, ihi, plscale, prscale, pwork, info |
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205 F77_CHAR_ARG_LEN (1))); |
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206 |
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207 balancing_mat = Matrix (n, n, 0.0); |
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208 balancing_mat2 = Matrix (n, n, 0.0); |
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209 for (octave_idx_type i = 0; i < n; i++) |
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210 { |
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211 octave_quit (); |
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212 balancing_mat.elem (i ,i) = 1.0; |
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213 balancing_mat2.elem (i ,i) = 1.0; |
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214 } |
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215 |
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216 double *p_balancing_mat = balancing_mat.fortran_vec (); |
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217 double *p_balancing_mat2 = balancing_mat2.fortran_vec (); |
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218 |
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219 // first left |
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220 F77_XFCN (dggbak, DGGBAK, (F77_CONST_CHAR_ARG2 (&job, 1), |
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221 F77_CONST_CHAR_ARG2 ("L", 1), |
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222 n, ilo, ihi, plscale, prscale, |
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223 n, p_balancing_mat, n, info |
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224 F77_CHAR_ARG_LEN (1) |
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225 F77_CHAR_ARG_LEN (1))); |
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226 |
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227 // then right |
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228 F77_XFCN (dggbak, DGGBAK, (F77_CONST_CHAR_ARG2 (&job, 1), |
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229 F77_CONST_CHAR_ARG2 ("R", 1), |
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230 n, ilo, ihi, plscale, prscale, |
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231 n, p_balancing_mat2, n, info |
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232 F77_CHAR_ARG_LEN (1) |
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233 F77_CHAR_ARG_LEN (1))); |
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234 |
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235 return info; |
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236 } |
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237 |
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238 template <> |
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239 octave_idx_type |
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240 gepbalance<FloatComplexMatrix>::init (const FloatComplexMatrix& a, |
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241 const FloatComplexMatrix& b, |
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242 const std::string& balance_job) |
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243 { |
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244 octave_idx_type n = a.cols (); |
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245 |
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246 if (a.rows () != n) |
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247 { |
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248 (*current_liboctave_error_handler) |
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249 ("FloatComplexGEPBALANCE requires square matrix"); |
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250 return -1; |
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251 } |
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252 |
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253 if (a.dims () != b.dims ()) |
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254 octave::err_nonconformant ("FloatComplexGEPBALANCE", n, n, b.rows(), b.cols()); |
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255 |
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256 octave_idx_type info; |
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257 octave_idx_type ilo; |
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258 octave_idx_type ihi; |
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259 |
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260 OCTAVE_LOCAL_BUFFER (float, plscale, n); |
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261 OCTAVE_LOCAL_BUFFER (float, prscale, n); |
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262 OCTAVE_LOCAL_BUFFER (float, pwork, 6 * n); |
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263 |
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264 balanced_mat = a; |
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265 FloatComplex *p_balanced_mat = balanced_mat.fortran_vec (); |
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266 balanced_mat2 = b; |
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267 FloatComplex *p_balanced_mat2 = balanced_mat2.fortran_vec (); |
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268 |
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269 char job = balance_job[0]; |
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270 |
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271 F77_XFCN (cggbal, CGGBAL, (F77_CONST_CHAR_ARG2 (&job, 1), |
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272 n, F77_CMPLX_ARG (p_balanced_mat), n, F77_CMPLX_ARG (p_balanced_mat2), |
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273 n, ilo, ihi, plscale, prscale, pwork, info |
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274 F77_CHAR_ARG_LEN (1))); |
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275 |
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276 balancing_mat = FloatMatrix (n, n, 0.0); |
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277 balancing_mat2 = FloatMatrix (n, n, 0.0); |
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278 for (octave_idx_type i = 0; i < n; i++) |
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279 { |
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280 octave_quit (); |
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281 balancing_mat.elem (i ,i) = 1.0; |
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282 balancing_mat2.elem (i ,i) = 1.0; |
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283 } |
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284 |
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285 float *p_balancing_mat = balancing_mat.fortran_vec (); |
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286 float *p_balancing_mat2 = balancing_mat2.fortran_vec (); |
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287 |
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288 // first left |
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289 F77_XFCN (sggbak, SGGBAK, (F77_CONST_CHAR_ARG2 (&job, 1), |
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290 F77_CONST_CHAR_ARG2 ("L", 1), |
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291 n, ilo, ihi, plscale, prscale, |
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292 n, p_balancing_mat, n, info |
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293 F77_CHAR_ARG_LEN (1) |
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294 F77_CHAR_ARG_LEN (1))); |
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295 |
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296 // then right |
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297 F77_XFCN (sggbak, SGGBAK, (F77_CONST_CHAR_ARG2 (&job, 1), |
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298 F77_CONST_CHAR_ARG2 ("R", 1), |
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299 n, ilo, ihi, plscale, prscale, |
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300 n, p_balancing_mat2, n, info |
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301 F77_CHAR_ARG_LEN (1) |
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302 F77_CHAR_ARG_LEN (1))); |
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303 |
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304 return info; |
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305 } |
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306 |
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307 // Instantiations we need. |
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308 |
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309 template class gepbalance<Matrix>; |
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310 |
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311 template class gepbalance<FloatMatrix>; |
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312 |
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313 template class gepbalance<ComplexMatrix>; |
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314 |
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315 template class gepbalance<FloatComplexMatrix>; |
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316 } |
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317 } |