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annotate liboctave/numeric/gepbalance.cc @ 27933:863ae57eee69

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maint: Use Octave coding conventions in liboctave/ * Array-C.cc, Array-d.cc, Array-f.cc, MSparse.cc, Sparse.cc, dim-vector.h, xerbla.cc, aepbalance.cc, eigs-base.cc, gepbalance.cc, oct-fftw.cc, randmtzig.cc, mx-inlines.cc, lo-sysdep.cc, base-list.h, cmd-edit.h, lo-regexp.cc, oct-atomic.h, oct-binmap.h, oct-inttypes.cc, oct-inttypes.h, quit.h, url-transfer.cc: Use Octave coding conventions in liboctave.
author Rik <rik@octave.org>
date Sat, 11 Jan 2020 12:53:20 -0800
parents bd51beb6205e
children 5c14f81e0937 0a5b15007766
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1994-2020 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if defined (HAVE_CONFIG_H)
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27 # include "config.h"
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28 #endif
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29
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30 #include "CMatrix.h"
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31 #include "dMatrix.h"
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32 #include "fCMatrix.h"
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33 #include "fMatrix.h"
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34 #include "gepbalance.h"
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35 #include "lo-array-errwarn.h"
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36 #include "lo-error.h"
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37 #include "lo-lapack-proto.h"
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38 #include "oct-locbuf.h"
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39 #include "quit.h"
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40
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41 namespace octave
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42 {
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43 namespace math
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44 {
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45 template <>
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46 octave_idx_type
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47 gepbalance<Matrix>::init (const Matrix& a, const Matrix& b,
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48 const std::string& balance_job)
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49 {
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50 F77_INT n = to_f77_int (a.cols ());
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51
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52 if (a.rows () != n)
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53 (*current_liboctave_error_handler)
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54 ("GEPBALANCE requires square matrix");
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55
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56 if (a.dims () != b.dims ())
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57 err_nonconformant ("GEPBALANCE", n, n, b.rows(), b.cols());
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58
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59 F77_INT info;
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60 F77_INT ilo;
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61 F77_INT ihi;
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62
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63 OCTAVE_LOCAL_BUFFER (double, plscale, n);
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64 OCTAVE_LOCAL_BUFFER (double, prscale, n);
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65 OCTAVE_LOCAL_BUFFER (double, pwork, 6 * n);
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66
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67 balanced_mat = a;
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68 double *p_balanced_mat = balanced_mat.fortran_vec ();
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69 balanced_mat2 = b;
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70 double *p_balanced_mat2 = balanced_mat2.fortran_vec ();
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71
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72 char job = balance_job[0];
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73
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74 F77_XFCN (dggbal, DGGBAL, (F77_CONST_CHAR_ARG2 (&job, 1),
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75 n, p_balanced_mat, n, p_balanced_mat2,
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76 n, ilo, ihi, plscale, prscale, pwork, info
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77 F77_CHAR_ARG_LEN (1)));
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78
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79 balancing_mat = Matrix (n, n, 0.0);
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80 balancing_mat2 = Matrix (n, n, 0.0);
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81 for (F77_INT i = 0; i < n; i++)
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82 {
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83 octave_quit ();
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84 balancing_mat.elem (i,i) = 1.0;
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85 balancing_mat2.elem (i,i) = 1.0;
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86 }
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87
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88 double *p_balancing_mat = balancing_mat.fortran_vec ();
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89 double *p_balancing_mat2 = balancing_mat2.fortran_vec ();
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90
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91 // first left
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92 F77_XFCN (dggbak, DGGBAK, (F77_CONST_CHAR_ARG2 (&job, 1),
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93 F77_CONST_CHAR_ARG2 ("L", 1),
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94 n, ilo, ihi, plscale, prscale,
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95 n, p_balancing_mat, n, info
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96 F77_CHAR_ARG_LEN (1)
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97 F77_CHAR_ARG_LEN (1)));
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98
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99 // then right
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100 F77_XFCN (dggbak, DGGBAK, (F77_CONST_CHAR_ARG2 (&job, 1),
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101 F77_CONST_CHAR_ARG2 ("R", 1),
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102 n, ilo, ihi, plscale, prscale,
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103 n, p_balancing_mat2, n, info
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104 F77_CHAR_ARG_LEN (1)
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105 F77_CHAR_ARG_LEN (1)));
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106
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107 return info;
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108 }
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109
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110 template <>
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111 octave_idx_type
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112 gepbalance<FloatMatrix>::init (const FloatMatrix& a, const FloatMatrix& b,
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113 const std::string& balance_job)
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114 {
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115 F77_INT n = to_f77_int (a.cols ());
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116
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117 if (a.rows () != n)
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118 (*current_liboctave_error_handler)
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119 ("FloatGEPBALANCE requires square matrix");
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120
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121 if (a.dims () != b.dims ())
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122 err_nonconformant ("FloatGEPBALANCE",
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123 n, n, b.rows(), b.cols());
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124
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125 F77_INT info;
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126 F77_INT ilo;
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127 F77_INT ihi;
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128
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129 OCTAVE_LOCAL_BUFFER (float, plscale, n);
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130 OCTAVE_LOCAL_BUFFER (float, prscale, n);
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131 OCTAVE_LOCAL_BUFFER (float, pwork, 6 * n);
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132
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133 balanced_mat = a;
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134 float *p_balanced_mat = balanced_mat.fortran_vec ();
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135 balanced_mat2 = b;
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136 float *p_balanced_mat2 = balanced_mat2.fortran_vec ();
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137
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138 char job = balance_job[0];
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139
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140 F77_XFCN (sggbal, SGGBAL, (F77_CONST_CHAR_ARG2 (&job, 1),
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141 n, p_balanced_mat, n, p_balanced_mat2,
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142 n, ilo, ihi, plscale, prscale, pwork, info
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diff changeset
143 F77_CHAR_ARG_LEN (1)));
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144
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145 balancing_mat = FloatMatrix (n, n, 0.0);
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146 balancing_mat2 = FloatMatrix (n, n, 0.0);
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147 for (F77_INT i = 0; i < n; i++)
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148 {
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149 octave_quit ();
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150 balancing_mat.elem (i,i) = 1.0;
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151 balancing_mat2.elem (i,i) = 1.0;
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152 }
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153
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154 float *p_balancing_mat = balancing_mat.fortran_vec ();
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155 float *p_balancing_mat2 = balancing_mat2.fortran_vec ();
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156
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157 // first left
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158 F77_XFCN (sggbak, SGGBAK, (F77_CONST_CHAR_ARG2 (&job, 1),
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159 F77_CONST_CHAR_ARG2 ("L", 1),
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160 n, ilo, ihi, plscale, prscale,
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161 n, p_balancing_mat, n, info
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162 F77_CHAR_ARG_LEN (1)
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163 F77_CHAR_ARG_LEN (1)));
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164
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165 // then right
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166 F77_XFCN (sggbak, SGGBAK, (F77_CONST_CHAR_ARG2 (&job, 1),
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167 F77_CONST_CHAR_ARG2 ("R", 1),
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168 n, ilo, ihi, plscale, prscale,
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169 n, p_balancing_mat2, n, info
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170 F77_CHAR_ARG_LEN (1)
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171 F77_CHAR_ARG_LEN (1)));
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172
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173 return info;
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174 }
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175
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176 template <>
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177 octave_idx_type
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178 gepbalance<ComplexMatrix>::init (const ComplexMatrix& a,
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179 const ComplexMatrix& b,
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180 const std::string& balance_job)
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181 {
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182 F77_INT n = to_f77_int (a.cols ());
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183
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184 if (a.rows () != n)
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185 (*current_liboctave_error_handler)
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186 ("ComplexGEPBALANCE requires square matrix");
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187
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188 if (a.dims () != b.dims ())
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189 err_nonconformant ("ComplexGEPBALANCE",
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190 n, n, b.rows(), b.cols());
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191
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192 F77_INT info;
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193 F77_INT ilo;
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194 F77_INT ihi;
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195
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196 OCTAVE_LOCAL_BUFFER (double, plscale, n);
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197 OCTAVE_LOCAL_BUFFER (double, prscale, n);
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198 OCTAVE_LOCAL_BUFFER (double, pwork, 6 * n);
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199
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200 balanced_mat = a;
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201 Complex *p_balanced_mat = balanced_mat.fortran_vec ();
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202 balanced_mat2 = b;
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203 Complex *p_balanced_mat2 = balanced_mat2.fortran_vec ();
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204
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205 char job = balance_job[0];
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206
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207 F77_XFCN (zggbal, ZGGBAL, (F77_CONST_CHAR_ARG2 (&job, 1),
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d691ed308237 maint: Clean up #includes in liboctave/numeric directory.
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diff changeset
208 n, F77_DBLE_CMPLX_ARG (p_balanced_mat),
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diff changeset
209 n, F77_DBLE_CMPLX_ARG (p_balanced_mat2),
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diff changeset
210 n, ilo, ihi, plscale, prscale, pwork, info
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diff changeset
211 F77_CHAR_ARG_LEN (1)));
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212
22329
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diff changeset
213 balancing_mat = Matrix (n, n, 0.0);
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diff changeset
214 balancing_mat2 = Matrix (n, n, 0.0);
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215 for (F77_INT i = 0; i < n; i++)
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diff changeset
216 {
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217 octave_quit ();
27933
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218 balancing_mat.elem (i,i) = 1.0;
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219 balancing_mat2.elem (i,i) = 1.0;
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220 }
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221
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diff changeset
222 double *p_balancing_mat = balancing_mat.fortran_vec ();
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223 double *p_balancing_mat2 = balancing_mat2.fortran_vec ();
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224
22329
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diff changeset
225 // first left
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226 F77_XFCN (dggbak, DGGBAK, (F77_CONST_CHAR_ARG2 (&job, 1),
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diff changeset
227 F77_CONST_CHAR_ARG2 ("L", 1),
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diff changeset
228 n, ilo, ihi, plscale, prscale,
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diff changeset
229 n, p_balancing_mat, n, info
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diff changeset
230 F77_CHAR_ARG_LEN (1)
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diff changeset
231 F77_CHAR_ARG_LEN (1)));
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diff changeset
232
22329
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diff changeset
233 // then right
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diff changeset
234 F77_XFCN (dggbak, DGGBAK, (F77_CONST_CHAR_ARG2 (&job, 1),
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diff changeset
235 F77_CONST_CHAR_ARG2 ("R", 1),
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diff changeset
236 n, ilo, ihi, plscale, prscale,
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diff changeset
237 n, p_balancing_mat2, n, info
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diff changeset
238 F77_CHAR_ARG_LEN (1)
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diff changeset
239 F77_CHAR_ARG_LEN (1)));
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diff changeset
240
22329
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diff changeset
241 return info;
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242 }
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243
22329
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diff changeset
244 template <>
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diff changeset
245 octave_idx_type
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diff changeset
246 gepbalance<FloatComplexMatrix>::init (const FloatComplexMatrix& a,
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diff changeset
247 const FloatComplexMatrix& b,
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diff changeset
248 const std::string& balance_job)
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diff changeset
249 {
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diff changeset
250 F77_INT n = to_f77_int (a.cols ());
22329
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diff changeset
251
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
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diff changeset
252 if (a.rows () != n)
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diff changeset
253 {
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
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diff changeset
254 (*current_liboctave_error_handler)
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255 ("FloatComplexGEPBALANCE requires square matrix");
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256 return -1;
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257 }
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258
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259 if (a.dims () != b.dims ())
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260 err_nonconformant ("FloatComplexGEPBALANCE",
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261 n, n, b.rows(), b.cols());
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262
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263 F77_INT info;
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264 F77_INT ilo;
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265 F77_INT ihi;
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266
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267 OCTAVE_LOCAL_BUFFER (float, plscale, n);
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268 OCTAVE_LOCAL_BUFFER (float, prscale, n);
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269 OCTAVE_LOCAL_BUFFER (float, pwork, 6 * n);
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270
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271 balanced_mat = a;
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272 FloatComplex *p_balanced_mat = balanced_mat.fortran_vec ();
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273 balanced_mat2 = b;
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274 FloatComplex *p_balanced_mat2 = balanced_mat2.fortran_vec ();
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275
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276 char job = balance_job[0];
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277
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278 F77_XFCN (cggbal, CGGBAL, (F77_CONST_CHAR_ARG2 (&job, 1),
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279 n, F77_CMPLX_ARG (p_balanced_mat),
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280 n, F77_CMPLX_ARG (p_balanced_mat2),
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281 n, ilo, ihi, plscale, prscale, pwork, info
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282 F77_CHAR_ARG_LEN (1)));
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283
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284 balancing_mat = FloatMatrix (n, n, 0.0);
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285 balancing_mat2 = FloatMatrix (n, n, 0.0);
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286 for (F77_INT i = 0; i < n; i++)
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287 {
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288 octave_quit ();
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289 balancing_mat.elem (i,i) = 1.0;
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290 balancing_mat2.elem (i,i) = 1.0;
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291 }
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292
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293 float *p_balancing_mat = balancing_mat.fortran_vec ();
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294 float *p_balancing_mat2 = balancing_mat2.fortran_vec ();
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295
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296 // first left
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297 F77_XFCN (sggbak, SGGBAK, (F77_CONST_CHAR_ARG2 (&job, 1),
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298 F77_CONST_CHAR_ARG2 ("L", 1),
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299 n, ilo, ihi, plscale, prscale,
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300 n, p_balancing_mat, 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 // then right
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305 F77_XFCN (sggbak, SGGBAK, (F77_CONST_CHAR_ARG2 (&job, 1),
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306 F77_CONST_CHAR_ARG2 ("R", 1),
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307 n, ilo, ihi, plscale, prscale,
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308 n, p_balancing_mat2, n, info
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309 F77_CHAR_ARG_LEN (1)
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310 F77_CHAR_ARG_LEN (1)));
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311
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312 return info;
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313 }
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314
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315 // Instantiations we need.
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316
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317 template class gepbalance<Matrix>;
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318
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319 template class gepbalance<FloatMatrix>;
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320
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321 template class gepbalance<ComplexMatrix>;
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322
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323 template class gepbalance<FloatComplexMatrix>;
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324 }
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325 }