Mercurial > octave
annotate liboctave/numeric/qrp.cc @ 31249:de6fc38c78c6
Make Jacobian types offered by dlsode.f accessible by lsode (bug #31626).
* liboctave/numeric/LSODE-opts.in: Add options "jacobian type", "lower jacobian
subdiagonals", and "upper jacobian subdiagonals".
* liboctave/numeric/LSODE.cc (file scope, lsode_j,
LSODE::do_integrate (double)): Handle new configurable Jacobian types.
* build-aux/mk-opts.pl: Don't implicitly convert to integer in condition.
author | Olaf Till <olaf.till@uni-jena.de> |
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date | Fri, 12 Nov 2010 08:53:05 +0100 |
parents | 796f54d4ddbf |
children | e88a07dec498 |
rev | line source |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 1994-2022 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 //////////////////////////////////////////////////////////////////////// |
538 | 25 |
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26 #if defined (HAVE_CONFIG_H) |
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27 # include "config.h" |
538 | 28 #endif |
29 | |
1367 | 30 #include <cassert> |
538 | 31 |
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32 #include <algorithm> |
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33 |
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34 #include "Array.h" |
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35 #include "CMatrix.h" |
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36 #include "MArray.h" |
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37 #include "dMatrix.h" |
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38 #include "dRowVector.h" |
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39 #include "fCMatrix.h" |
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40 #include "fMatrix.h" |
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41 #include "fRowVector.h" |
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42 #include "lo-lapack-proto.h" |
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43 #include "oct-locbuf.h" |
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44 #include "qrp.h" |
538 | 45 |
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46 namespace octave |
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47 { |
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48 namespace math |
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49 { |
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50 // Specialization. |
538 | 51 |
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52 template <> |
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53 OCTAVE_API |
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54 void |
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55 qrp<Matrix>::init (const Matrix& a, type qr_type) |
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56 { |
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57 assert (qr_type != qr<Matrix>::raw); |
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58 |
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59 F77_INT m = to_f77_int (a.rows ()); |
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60 F77_INT n = to_f77_int (a.cols ()); |
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61 |
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62 F77_INT min_mn = (m < n ? m : n); |
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63 OCTAVE_LOCAL_BUFFER (double, tau, min_mn); |
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64 |
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65 F77_INT info = 0; |
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66 |
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67 Matrix afact = a; |
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68 if (m > n && qr_type == qr<Matrix>::std) |
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69 afact.resize (m, m); |
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70 |
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71 MArray<F77_INT> jpvt (dim_vector (n, 1), 0); |
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72 |
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73 if (m > 0) |
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74 { |
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75 // workspace query. |
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76 double rlwork; |
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77 F77_XFCN (dgeqp3, DGEQP3, (m, n, afact.fortran_vec (), |
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78 m, jpvt.fortran_vec (), tau, |
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79 &rlwork, -1, info)); |
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80 |
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81 // allocate buffer and do the job. |
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82 F77_INT lwork = static_cast<F77_INT> (rlwork); |
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83 lwork = std::max (lwork, static_cast<F77_INT> (1)); |
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84 OCTAVE_LOCAL_BUFFER (double, work, lwork); |
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85 |
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86 F77_XFCN (dgeqp3, DGEQP3, (m, n, afact.fortran_vec (), |
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87 m, jpvt.fortran_vec (), tau, |
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88 work, lwork, info)); |
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89 } |
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90 else |
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91 { |
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92 for (F77_INT i = 0; i < n; i++) |
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93 jpvt(i) = i+1; |
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94 } |
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95 |
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96 // Form Permutation matrix (if economy is requested, return the |
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97 // indices only!) |
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98 |
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99 jpvt -= static_cast<F77_INT> (1); |
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100 m_p = PermMatrix (jpvt, true); |
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101 |
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102 form (n, afact, tau, qr_type); |
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103 } |
1922 | 104 |
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105 template <> |
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106 OCTAVE_API |
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107 qrp<Matrix>::qrp (const Matrix& a, type qr_type) |
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108 : qr<Matrix> (), m_p () |
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109 { |
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110 init (a, qr_type); |
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111 } |
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112 |
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113 template <> |
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114 OCTAVE_API |
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115 RowVector |
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116 qrp<Matrix>::Pvec (void) const |
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117 { |
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118 Array<double> pa (m_p.col_perm_vec ()); |
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119 RowVector pv (MArray<double> (pa) + 1.0); |
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120 return pv; |
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121 } |
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122 |
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123 template <> |
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124 OCTAVE_API |
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125 void |
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126 qrp<FloatMatrix>::init (const FloatMatrix& a, type qr_type) |
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127 { |
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128 assert (qr_type != qr<FloatMatrix>::raw); |
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129 |
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130 F77_INT m = to_f77_int (a.rows ()); |
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131 F77_INT n = to_f77_int (a.cols ()); |
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132 |
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133 F77_INT min_mn = (m < n ? m : n); |
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134 OCTAVE_LOCAL_BUFFER (float, tau, min_mn); |
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135 |
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136 F77_INT info = 0; |
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137 |
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138 FloatMatrix afact = a; |
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139 if (m > n && qr_type == qr<FloatMatrix>::std) |
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140 afact.resize (m, m); |
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141 |
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142 MArray<F77_INT> jpvt (dim_vector (n, 1), 0); |
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143 |
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144 if (m > 0) |
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145 { |
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146 // workspace query. |
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147 float rlwork; |
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148 F77_XFCN (sgeqp3, SGEQP3, (m, n, afact.fortran_vec (), |
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149 m, jpvt.fortran_vec (), tau, |
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150 &rlwork, -1, info)); |
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151 |
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152 // allocate buffer and do the job. |
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153 F77_INT lwork = static_cast<F77_INT> (rlwork); |
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154 lwork = std::max (lwork, static_cast<F77_INT> (1)); |
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155 OCTAVE_LOCAL_BUFFER (float, work, lwork); |
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156 |
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157 F77_XFCN (sgeqp3, SGEQP3, (m, n, afact.fortran_vec (), |
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158 m, jpvt.fortran_vec (), tau, |
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159 work, lwork, info)); |
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160 } |
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161 else |
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162 { |
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163 for (F77_INT i = 0; i < n; i++) |
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164 jpvt(i) = i+1; |
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165 } |
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166 |
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167 // Form Permutation matrix (if economy is requested, return the |
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168 // indices only!) |
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169 |
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170 jpvt -= static_cast<F77_INT> (1); |
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171 m_p = PermMatrix (jpvt, true); |
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172 |
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173 form (n, afact, tau, qr_type); |
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174 } |
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175 |
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176 template <> |
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177 OCTAVE_API |
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178 qrp<FloatMatrix>::qrp (const FloatMatrix& a, type qr_type) |
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179 : qr<FloatMatrix> (), m_p () |
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180 { |
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181 init (a, qr_type); |
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182 } |
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183 |
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184 template <> |
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185 OCTAVE_API |
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186 FloatRowVector |
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187 qrp<FloatMatrix>::Pvec (void) const |
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188 { |
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189 Array<float> pa (m_p.col_perm_vec ()); |
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190 FloatRowVector pv (MArray<float> (pa) + 1.0f); |
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191 return pv; |
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192 } |
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193 |
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194 template <> |
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195 OCTAVE_API |
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196 void |
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197 qrp<ComplexMatrix>::init (const ComplexMatrix& a, type qr_type) |
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198 { |
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199 assert (qr_type != qr<ComplexMatrix>::raw); |
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200 |
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201 F77_INT m = to_f77_int (a.rows ()); |
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202 F77_INT n = to_f77_int (a.cols ()); |
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203 |
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204 F77_INT min_mn = (m < n ? m : n); |
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205 OCTAVE_LOCAL_BUFFER (Complex, tau, min_mn); |
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206 |
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207 F77_INT info = 0; |
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208 |
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209 ComplexMatrix afact = a; |
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210 if (m > n && qr_type == qr<ComplexMatrix>::std) |
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211 afact.resize (m, m); |
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212 |
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213 MArray<F77_INT> jpvt (dim_vector (n, 1), 0); |
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214 |
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215 if (m > 0) |
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216 { |
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217 OCTAVE_LOCAL_BUFFER (double, rwork, 2*n); |
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218 |
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219 // workspace query. |
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220 Complex clwork; |
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221 F77_XFCN (zgeqp3, ZGEQP3, (m, n, |
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222 F77_DBLE_CMPLX_ARG (afact.fortran_vec ()), |
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223 m, jpvt.fortran_vec (), |
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224 F77_DBLE_CMPLX_ARG (tau), |
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225 F77_DBLE_CMPLX_ARG (&clwork), |
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226 -1, rwork, info)); |
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227 |
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228 // allocate buffer and do the job. |
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229 F77_INT lwork = static_cast<F77_INT> (clwork.real ()); |
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230 lwork = std::max (lwork, static_cast<F77_INT> (1)); |
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231 OCTAVE_LOCAL_BUFFER (Complex, work, lwork); |
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232 |
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233 F77_XFCN (zgeqp3, ZGEQP3, (m, n, |
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234 F77_DBLE_CMPLX_ARG (afact.fortran_vec ()), |
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235 m, jpvt.fortran_vec (), |
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236 F77_DBLE_CMPLX_ARG (tau), |
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237 F77_DBLE_CMPLX_ARG (work), |
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238 lwork, rwork, info)); |
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239 } |
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240 else |
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241 { |
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242 for (F77_INT i = 0; i < n; i++) |
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243 jpvt(i) = i+1; |
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244 } |
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245 |
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246 // Form Permutation matrix (if economy is requested, return the |
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247 // indices only!) |
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248 |
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249 jpvt -= static_cast<F77_INT> (1); |
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250 m_p = PermMatrix (jpvt, true); |
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251 |
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252 form (n, afact, tau, qr_type); |
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253 } |
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254 |
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255 template <> |
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256 OCTAVE_API |
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257 qrp<ComplexMatrix>::qrp (const ComplexMatrix& a, type qr_type) |
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258 : qr<ComplexMatrix> (), m_p () |
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259 { |
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260 init (a, qr_type); |
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261 } |
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262 |
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263 template <> |
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264 OCTAVE_API |
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265 RowVector |
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266 qrp<ComplexMatrix>::Pvec (void) const |
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267 { |
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268 Array<double> pa (m_p.col_perm_vec ()); |
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269 RowVector pv (MArray<double> (pa) + 1.0); |
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270 return pv; |
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271 } |
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272 |
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273 template <> |
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274 OCTAVE_API |
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275 void |
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276 qrp<FloatComplexMatrix>::init (const FloatComplexMatrix& a, type qr_type) |
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277 { |
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278 assert (qr_type != qr<FloatComplexMatrix>::raw); |
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279 |
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280 F77_INT m = to_f77_int (a.rows ()); |
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281 F77_INT n = to_f77_int (a.cols ()); |
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282 |
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283 F77_INT min_mn = (m < n ? m : n); |
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284 OCTAVE_LOCAL_BUFFER (FloatComplex, tau, min_mn); |
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285 |
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286 F77_INT info = 0; |
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287 |
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288 FloatComplexMatrix afact = a; |
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289 if (m > n && qr_type == qr<FloatComplexMatrix>::std) |
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290 afact.resize (m, m); |
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291 |
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292 MArray<F77_INT> jpvt (dim_vector (n, 1), 0); |
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293 |
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294 if (m > 0) |
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295 { |
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296 OCTAVE_LOCAL_BUFFER (float, rwork, 2*n); |
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297 |
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298 // workspace query. |
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299 FloatComplex clwork; |
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300 F77_XFCN (cgeqp3, CGEQP3, (m, n, |
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301 F77_CMPLX_ARG (afact.fortran_vec ()), |
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302 m, jpvt.fortran_vec (), |
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303 F77_CMPLX_ARG (tau), |
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304 F77_CMPLX_ARG (&clwork), |
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305 -1, rwork, info)); |
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306 |
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307 // allocate buffer and do the job. |
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308 F77_INT lwork = static_cast<F77_INT> (clwork.real ()); |
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309 lwork = std::max (lwork, static_cast<F77_INT> (1)); |
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310 OCTAVE_LOCAL_BUFFER (FloatComplex, work, lwork); |
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311 |
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312 F77_XFCN (cgeqp3, CGEQP3, (m, n, |
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313 F77_CMPLX_ARG (afact.fortran_vec ()), |
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314 m, jpvt.fortran_vec (), |
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315 F77_CMPLX_ARG (tau), |
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316 F77_CMPLX_ARG (work), |
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317 lwork, rwork, info)); |
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318 } |
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319 else |
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320 { |
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321 for (F77_INT i = 0; i < n; i++) |
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322 jpvt(i) = i+1; |
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323 } |
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324 |
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325 // Form Permutation matrix (if economy is requested, return the |
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326 // indices only!) |
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327 |
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328 jpvt -= static_cast<F77_INT> (1); |
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329 m_p = PermMatrix (jpvt, true); |
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330 |
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331 form (n, afact, tau, qr_type); |
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332 } |
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333 |
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334 template <> |
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335 OCTAVE_API |
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336 qrp<FloatComplexMatrix>::qrp (const FloatComplexMatrix& a, type qr_type) |
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337 : qr<FloatComplexMatrix> (), m_p () |
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338 { |
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339 init (a, qr_type); |
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340 } |
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341 |
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342 template <> |
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343 OCTAVE_API |
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344 FloatRowVector |
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345 qrp<FloatComplexMatrix>::Pvec (void) const |
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346 { |
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347 Array<float> pa (m_p.col_perm_vec ()); |
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348 FloatRowVector pv (MArray<float> (pa) + 1.0f); |
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349 return pv; |
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350 } |
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351 } |
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352 } |