Mercurial > jwe > octave
annotate liboctave/numeric/floatQR.cc @ 21136:7cac4e7458f2
maint: clean up code around calls to current_liboctave_error_handler.
Remove statements after call to handler that are no longer reachable.
Place input validation first and immediately call handler if necessary.
Change if/error_handler/else to if/error_handler and re-indent code.
* Array-util.cc, Array.cc, CColVector.cc, CDiagMatrix.cc, CMatrix.cc,
CNDArray.cc, CRowVector.cc, CSparse.cc, DiagArray2.cc, MArray.cc,
PermMatrix.cc, Sparse.cc, Sparse.h, chMatrix.cc, chNDArray.cc, dColVector.cc,
dDiagMatrix.cc, dMatrix.cc, dNDArray.cc, dRowVector.cc, dSparse.cc,
fCColVector.cc, fCDiagMatrix.cc, fCMatrix.cc, fCNDArray.cc, fCRowVector.cc,
fColVector.cc, fDiagMatrix.cc, fMatrix.cc, fNDArray.cc, fRowVector.cc,
idx-vector.cc, CmplxAEPBAL.cc, CmplxCHOL.cc, CmplxGEPBAL.cc, CmplxHESS.cc,
CmplxLU.cc, CmplxQR.cc, CmplxSCHUR.cc, CmplxSVD.cc, DASPK.cc, EIG.cc, LSODE.cc,
Quad.cc, SparseCmplxCHOL.cc, SparseCmplxLU.cc, SparseCmplxQR.cc, SparseQR.cc,
SparsedbleCHOL.cc, SparsedbleLU.cc, base-lu.cc, bsxfun-defs.cc, dbleAEPBAL.cc,
dbleCHOL.cc, dbleGEPBAL.cc, dbleHESS.cc, dbleLU.cc, dbleQR.cc, dbleSCHUR.cc,
dbleSVD.cc, eigs-base.cc, fCmplxAEPBAL.cc, fCmplxCHOL.cc, fCmplxLU.cc,
fCmplxQR.cc, fCmplxSCHUR.cc, fEIG.cc, floatAEPBAL.cc, floatCHOL.cc,
floatGEPBAL.cc, floatHESS.cc, floatLU.cc, floatQR.cc, floatSCHUR.cc,
floatSVD.cc, lo-specfun.cc, oct-fftw.cc, oct-rand.cc, oct-spparms.cc,
sparse-base-chol.cc, sparse-dmsolve.cc, file-ops.cc, lo-sysdep.cc,
mach-info.cc, oct-env.cc, oct-syscalls.cc, cmd-edit.cc, cmd-hist.cc,
data-conv.cc, lo-ieee.cc, lo-regexp.cc, oct-base64.cc, oct-shlib.cc,
pathsearch.cc, singleton-cleanup.cc, sparse-util.cc, unwind-prot.cc:
Remove statements after call to handler that are no longer reachable.
Place input validation first and immediately call handler if necessary.
Change if/error_handler/else to if/error_handler and re-indent code.
author | Rik <rik@octave.org> |
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date | Sat, 23 Jan 2016 13:52:03 -0800 |
parents | a9574e3c6e9e |
children | f7121e111991 |
rev | line source |
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1 /* |
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2 |
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3 Copyright (C) 1994-2015 John W. Eaton |
11523 | 4 Copyright (C) 2008-2009 Jaroslav Hajek |
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5 Copyright (C) 2009 VZLU Prague |
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6 |
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7 This file is part of Octave. |
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8 |
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9 Octave is free software; you can redistribute it and/or modify it |
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10 under the terms of the GNU General Public License as published by the |
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11 Free Software Foundation; either version 3 of the License, or (at your |
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12 option) any later version. |
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13 |
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14 Octave is distributed in the hope that it will be useful, but WITHOUT |
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15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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17 for more details. |
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18 |
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19 You should have received a copy of the GNU General Public License |
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20 along with Octave; see the file COPYING. If not, see |
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21 <http://www.gnu.org/licenses/>. |
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22 |
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23 */ |
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24 |
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25 #ifdef HAVE_CONFIG_H |
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26 #include <config.h> |
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27 #endif |
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28 |
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29 #include "floatQR.h" |
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30 #include "f77-fcn.h" |
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31 #include "lo-error.h" |
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32 #include "Range.h" |
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33 #include "idx-vector.h" |
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34 #include "oct-locbuf.h" |
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35 |
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36 #include "base-qr.cc" |
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37 |
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38 template class base_qr<FloatMatrix>; |
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39 |
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40 extern "C" |
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41 { |
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42 F77_RET_T |
11518 | 43 F77_FUNC (sgeqrf, SGEQRF) (const octave_idx_type&, const octave_idx_type&, |
44 float*, const octave_idx_type&, float*, float*, | |
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45 const octave_idx_type&, octave_idx_type&); |
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46 |
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47 F77_RET_T |
11518 | 48 F77_FUNC (sorgqr, SORGQR) (const octave_idx_type&, const octave_idx_type&, |
49 const octave_idx_type&, float*, | |
50 const octave_idx_type&, float*, float*, | |
51 const octave_idx_type&, octave_idx_type&); | |
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52 |
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53 #ifdef HAVE_QRUPDATE |
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54 |
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55 F77_RET_T |
11518 | 56 F77_FUNC (sqr1up, SQR1UP) (const octave_idx_type&, const octave_idx_type&, |
57 const octave_idx_type&, float*, | |
58 const octave_idx_type&, float*, | |
59 const octave_idx_type&, float*, float*, float*); | |
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60 |
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61 F77_RET_T |
11518 | 62 F77_FUNC (sqrinc, SQRINC) (const octave_idx_type&, const octave_idx_type&, |
63 const octave_idx_type&, float*, | |
64 const octave_idx_type&, float*, | |
65 const octave_idx_type&, | |
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66 const octave_idx_type&, const float*, float*); |
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67 |
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68 F77_RET_T |
11518 | 69 F77_FUNC (sqrdec, SQRDEC) (const octave_idx_type&, const octave_idx_type&, |
70 const octave_idx_type&, float*, | |
71 const octave_idx_type&, float*, | |
72 const octave_idx_type&, | |
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73 const octave_idx_type&, float*); |
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74 |
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75 F77_RET_T |
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76 F77_FUNC (sqrinr, SQRINR) (const octave_idx_type&, const octave_idx_type&, |
11518 | 77 float*, const octave_idx_type&, |
78 float*, const octave_idx_type&, | |
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79 const octave_idx_type&, const float*, float*); |
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80 |
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81 F77_RET_T |
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82 F77_FUNC (sqrder, SQRDER) (const octave_idx_type&, const octave_idx_type&, |
11518 | 83 float*, const octave_idx_type&, |
84 float*, const octave_idx_type&, | |
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85 const octave_idx_type&, float*); |
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86 |
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87 F77_RET_T |
11518 | 88 F77_FUNC (sqrshc, SQRSHC) (const octave_idx_type&, const octave_idx_type&, |
89 const octave_idx_type&, float*, | |
90 const octave_idx_type&, float*, | |
91 const octave_idx_type&, | |
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92 const octave_idx_type&, const octave_idx_type&, |
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93 float*); |
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94 |
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95 #endif |
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96 } |
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97 |
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98 FloatQR::FloatQR (const FloatMatrix& a, qr_type_t qr_type) |
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99 { |
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100 init (a, qr_type); |
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101 } |
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102 |
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103 void |
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104 FloatQR::init (const FloatMatrix& a, qr_type_t qr_type) |
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105 { |
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106 octave_idx_type m = a.rows (); |
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107 octave_idx_type n = a.cols (); |
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108 |
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109 octave_idx_type min_mn = m < n ? m : n; |
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110 OCTAVE_LOCAL_BUFFER (float, tau, min_mn); |
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111 |
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112 octave_idx_type info = 0; |
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113 |
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114 FloatMatrix afact = a; |
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115 if (m > n && qr_type == qr_type_std) |
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116 afact.resize (m, m); |
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117 |
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118 if (m > 0) |
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119 { |
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120 // workspace query. |
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121 float rlwork; |
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122 F77_XFCN (sgeqrf, SGEQRF, (m, n, afact.fortran_vec (), m, tau, |
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123 &rlwork, -1, info)); |
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124 |
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125 // allocate buffer and do the job. |
8811 | 126 octave_idx_type lwork = rlwork; |
127 lwork = std::max (lwork, static_cast<octave_idx_type> (1)); | |
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128 OCTAVE_LOCAL_BUFFER (float, work, lwork); |
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129 F77_XFCN (sgeqrf, SGEQRF, (m, n, afact.fortran_vec (), m, tau, |
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130 work, lwork, info)); |
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131 } |
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132 |
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133 form (n, afact, tau, qr_type); |
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134 } |
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135 |
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136 void FloatQR::form (octave_idx_type n, FloatMatrix& afact, |
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137 float *tau, qr_type_t qr_type) |
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138 { |
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139 octave_idx_type m = afact.rows (); |
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140 octave_idx_type min_mn = std::min (m, n); |
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141 octave_idx_type info; |
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142 |
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143 if (qr_type == qr_type_raw) |
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144 { |
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145 for (octave_idx_type j = 0; j < min_mn; j++) |
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146 { |
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147 octave_idx_type limit = j < min_mn - 1 ? j : min_mn - 1; |
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148 for (octave_idx_type i = limit + 1; i < m; i++) |
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149 afact.elem (i, j) *= tau[j]; |
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150 } |
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151 |
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152 r = afact; |
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153 } |
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154 else |
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155 { |
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156 // Attempt to minimize copying. |
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157 if (m >= n) |
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158 { |
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159 // afact will become q. |
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160 q = afact; |
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161 octave_idx_type k = qr_type == qr_type_economy ? n : m; |
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162 r = FloatMatrix (k, n); |
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163 for (octave_idx_type j = 0; j < n; j++) |
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164 { |
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165 octave_idx_type i = 0; |
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166 for (; i <= j; i++) |
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167 r.xelem (i, j) = afact.xelem (i, j); |
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168 for (; i < k; i++) |
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169 r.xelem (i, j) = 0; |
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170 } |
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171 afact = FloatMatrix (); // optimize memory |
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172 } |
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173 else |
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174 { |
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175 // afact will become r. |
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176 q = FloatMatrix (m, m); |
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177 for (octave_idx_type j = 0; j < m; j++) |
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178 for (octave_idx_type i = j + 1; i < m; i++) |
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179 { |
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180 q.xelem (i, j) = afact.xelem (i, j); |
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181 afact.xelem (i, j) = 0; |
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182 } |
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183 r = afact; |
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184 } |
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185 |
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186 |
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187 if (m > 0) |
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188 { |
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189 octave_idx_type k = q.columns (); |
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190 // workspace query. |
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191 float rlwork; |
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192 F77_XFCN (sorgqr, SORGQR, (m, k, min_mn, q.fortran_vec (), m, tau, |
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193 &rlwork, -1, info)); |
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194 |
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195 // allocate buffer and do the job. |
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197 lwork = std::max (lwork, static_cast<octave_idx_type> (1)); |
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198 OCTAVE_LOCAL_BUFFER (float, work, lwork); |
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199 F77_XFCN (sorgqr, SORGQR, (m, k, min_mn, q.fortran_vec (), m, tau, |
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200 work, lwork, info)); |
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201 } |
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202 } |
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203 } |
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204 |
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205 #ifdef HAVE_QRUPDATE |
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206 |
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207 void |
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208 FloatQR::update (const FloatColumnVector& u, const FloatColumnVector& v) |
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209 { |
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210 octave_idx_type m = q.rows (); |
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211 octave_idx_type n = r.columns (); |
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212 octave_idx_type k = q.columns (); |
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213 |
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214 if (u.numel () != m || v.numel () != n) |
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215 (*current_liboctave_error_handler) ("qrupdate: dimensions mismatch"); |
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216 |
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217 FloatColumnVector utmp = u; |
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218 FloatColumnVector vtmp = v; |
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219 OCTAVE_LOCAL_BUFFER (float, w, 2*k); |
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220 F77_XFCN (sqr1up, SQR1UP, (m, n, k, q.fortran_vec (), |
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221 m, r.fortran_vec (), k, |
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222 utmp.fortran_vec (), vtmp.fortran_vec (), w)); |
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223 } |
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224 |
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225 void |
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226 FloatQR::update (const FloatMatrix& u, const FloatMatrix& v) |
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227 { |
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228 octave_idx_type m = q.rows (); |
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229 octave_idx_type n = r.columns (); |
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230 octave_idx_type k = q.columns (); |
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231 |
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232 if (u.rows () != m || v.rows () != n || u.cols () != v.cols ()) |
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233 (*current_liboctave_error_handler) ("qrupdate: dimensions mismatch"); |
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234 |
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235 OCTAVE_LOCAL_BUFFER (float, w, 2*k); |
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236 for (volatile octave_idx_type i = 0; i < u.cols (); i++) |
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237 { |
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238 FloatColumnVector utmp = u.column (i); |
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239 FloatColumnVector vtmp = v.column (i); |
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240 F77_XFCN (sqr1up, SQR1UP, (m, n, k, q.fortran_vec (), |
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241 m, r.fortran_vec (), k, |
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242 utmp.fortran_vec (), vtmp.fortran_vec (), |
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243 w)); |
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244 } |
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245 } |
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246 |
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247 void |
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248 FloatQR::insert_col (const FloatColumnVector& u, octave_idx_type j) |
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249 { |
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250 octave_idx_type m = q.rows (); |
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251 octave_idx_type n = r.columns (); |
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252 octave_idx_type k = q.columns (); |
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253 |
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254 if (u.numel () != m) |
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255 (*current_liboctave_error_handler) ("qrinsert: dimensions mismatch"); |
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256 if (j < 0 || j > n) |
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257 (*current_liboctave_error_handler) ("qrinsert: index out of range"); |
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258 |
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259 if (k < m) |
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260 { |
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261 q.resize (m, k+1); |
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262 r.resize (k+1, n+1); |
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263 } |
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264 else |
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265 { |
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266 r.resize (k, n+1); |
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267 } |
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268 |
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269 FloatColumnVector utmp = u; |
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270 OCTAVE_LOCAL_BUFFER (float, w, k); |
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271 F77_XFCN (sqrinc, SQRINC, (m, n, k, q.fortran_vec (), q.rows (), |
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272 r.fortran_vec (), r.rows (), j + 1, |
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273 utmp.data (), w)); |
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274 } |
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275 |
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276 void |
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277 FloatQR::insert_col (const FloatMatrix& u, const Array<octave_idx_type>& j) |
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278 { |
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279 octave_idx_type m = q.rows (); |
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280 octave_idx_type n = r.columns (); |
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281 octave_idx_type k = q.columns (); |
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282 |
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283 Array<octave_idx_type> jsi; |
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284 Array<octave_idx_type> js = j.sort (jsi, 0, ASCENDING); |
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285 octave_idx_type nj = js.numel (); |
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286 bool dups = false; |
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287 for (octave_idx_type i = 0; i < nj - 1; i++) |
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288 dups = dups && js(i) == js(i+1); |
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289 |
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290 if (dups) |
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291 (*current_liboctave_error_handler) ("qrinsert: duplicate index detected"); |
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292 if (u.numel () != m || u.columns () != nj) |
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293 (*current_liboctave_error_handler) ("qrinsert: dimensions mismatch"); |
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294 if (nj > 0 && (js(0) < 0 || js(nj-1) > n)) |
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295 (*current_liboctave_error_handler) ("qrinsert: index out of range"); |
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296 |
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297 if (nj > 0) |
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298 { |
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299 octave_idx_type kmax = std::min (k + nj, m); |
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300 if (k < m) |
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301 { |
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302 q.resize (m, kmax); |
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303 r.resize (kmax, n + nj); |
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304 } |
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305 else |
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306 { |
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307 r.resize (k, n + nj); |
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308 } |
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309 |
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310 OCTAVE_LOCAL_BUFFER (float, w, kmax); |
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311 for (volatile octave_idx_type i = 0; i < js.numel (); i++) |
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312 { |
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313 octave_idx_type ii = i; |
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314 FloatColumnVector utmp = u.column (jsi(i)); |
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315 F77_XFCN (sqrinc, SQRINC, (m, n + ii, std::min (kmax, k + ii), |
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316 q.fortran_vec (), q.rows (), |
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317 r.fortran_vec (), r.rows (), js(ii) + 1, |
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318 utmp.data (), w)); |
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319 } |
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320 } |
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321 } |
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322 |
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323 void |
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324 FloatQR::delete_col (octave_idx_type j) |
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325 { |
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326 octave_idx_type m = q.rows (); |
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327 octave_idx_type k = r.rows (); |
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328 octave_idx_type n = r.columns (); |
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329 |
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330 if (j < 0 || j > n-1) |
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331 (*current_liboctave_error_handler) ("qrdelete: index out of range"); |
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332 |
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333 OCTAVE_LOCAL_BUFFER (float, w, k); |
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334 F77_XFCN (sqrdec, SQRDEC, (m, n, k, q.fortran_vec (), q.rows (), |
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335 r.fortran_vec (), r.rows (), j + 1, w)); |
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336 |
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337 if (k < m) |
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338 { |
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339 q.resize (m, k-1); |
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340 r.resize (k-1, n-1); |
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341 } |
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342 else |
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343 { |
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344 r.resize (k, n-1); |
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345 } |
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346 } |
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347 |
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348 void |
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349 FloatQR::delete_col (const Array<octave_idx_type>& j) |
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350 { |
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351 octave_idx_type m = q.rows (); |
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352 octave_idx_type n = r.columns (); |
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353 octave_idx_type k = q.columns (); |
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354 |
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355 Array<octave_idx_type> jsi; |
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356 Array<octave_idx_type> js = j.sort (jsi, 0, DESCENDING); |
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357 octave_idx_type nj = js.numel (); |
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358 bool dups = false; |
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359 for (octave_idx_type i = 0; i < nj - 1; i++) |
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360 dups = dups && js(i) == js(i+1); |
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361 |
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362 if (dups) |
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363 (*current_liboctave_error_handler) ("qrinsert: duplicate index detected"); |
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364 if (nj > 0 && (js(0) > n-1 || js(nj-1) < 0)) |
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365 (*current_liboctave_error_handler) ("qrinsert: index out of range"); |
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366 |
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367 if (nj > 0) |
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368 { |
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369 OCTAVE_LOCAL_BUFFER (float, w, k); |
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370 for (volatile octave_idx_type i = 0; i < js.numel (); i++) |
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371 { |
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372 octave_idx_type ii = i; |
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373 F77_XFCN (sqrdec, SQRDEC, (m, n - ii, k == m ? k : k - ii, |
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374 q.fortran_vec (), q.rows (), |
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375 r.fortran_vec (), r.rows (), |
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376 js(ii) + 1, w)); |
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377 } |
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378 if (k < m) |
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379 { |
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380 q.resize (m, k - nj); |
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381 r.resize (k - nj, n - nj); |
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382 } |
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383 else |
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384 { |
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385 r.resize (k, n - nj); |
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386 } |
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387 |
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388 } |
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389 } |
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390 |
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391 void |
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392 FloatQR::insert_row (const FloatRowVector& u, octave_idx_type j) |
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393 { |
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394 octave_idx_type m = r.rows (); |
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395 octave_idx_type n = r.columns (); |
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396 octave_idx_type k = std::min (m, n); |
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397 |
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398 if (! q.is_square () || u.numel () != n) |
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399 (*current_liboctave_error_handler) ("qrinsert: dimensions mismatch"); |
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400 if (j < 0 || j > m) |
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401 (*current_liboctave_error_handler) ("qrinsert: index out of range"); |
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402 |
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403 q.resize (m + 1, m + 1); |
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404 r.resize (m + 1, n); |
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405 FloatRowVector utmp = u; |
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406 OCTAVE_LOCAL_BUFFER (float, w, k); |
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407 F77_XFCN (sqrinr, SQRINR, (m, n, q.fortran_vec (), q.rows (), |
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408 r.fortran_vec (), r.rows (), |
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409 j + 1, utmp.fortran_vec (), w)); |
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410 |
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411 } |
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412 |
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413 void |
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414 FloatQR::delete_row (octave_idx_type j) |
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415 { |
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416 octave_idx_type m = r.rows (); |
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417 octave_idx_type n = r.columns (); |
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418 |
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419 if (! q.is_square ()) |
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420 (*current_liboctave_error_handler) ("qrdelete: dimensions mismatch"); |
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421 if (j < 0 || j > m-1) |
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422 (*current_liboctave_error_handler) ("qrdelete: index out of range"); |
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423 |
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424 OCTAVE_LOCAL_BUFFER (float, w, 2*m); |
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425 F77_XFCN (sqrder, SQRDER, (m, n, q.fortran_vec (), q.rows (), |
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426 r.fortran_vec (), r.rows (), j + 1, |
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427 w)); |
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428 |
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429 q.resize (m - 1, m - 1); |
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430 r.resize (m - 1, n); |
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431 } |
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432 |
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433 void |
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|
434 FloatQR::shift_cols (octave_idx_type i, octave_idx_type j) |
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435 { |
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436 octave_idx_type m = q.rows (); |
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437 octave_idx_type k = r.rows (); |
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438 octave_idx_type n = r.columns (); |
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|
439 |
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440 if (i < 0 || i > n-1 || j < 0 || j > n-1) |
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441 (*current_liboctave_error_handler) ("qrshift: index out of range"); |
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442 |
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|
443 OCTAVE_LOCAL_BUFFER (float, w, 2*k); |
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|
444 F77_XFCN (sqrshc, SQRSHC, (m, n, k, |
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|
445 q.fortran_vec (), q.rows (), |
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|
446 r.fortran_vec (), r.rows (), |
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|
447 i + 1, j + 1, w)); |
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448 } |
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449 |
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450 #else |
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451 |
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452 // Replacement update methods. |
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453 |
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|
454 void |
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|
455 FloatQR::update (const FloatColumnVector& u, const FloatColumnVector& v) |
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456 { |
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|
457 warn_qrupdate_once (); |
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|
458 |
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|
459 octave_idx_type m = q.rows (); |
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|
460 octave_idx_type n = r.columns (); |
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|
461 |
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|
462 if (u.numel () != m || v.numel () != n) |
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|
463 (*current_liboctave_error_handler) ("qrupdate: dimensions mismatch"); |
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|
464 |
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|
465 init (q*r + FloatMatrix (u) * FloatMatrix (v).transpose (), get_type ()); |
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|
466 } |
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|
467 |
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|
468 void |
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|
469 FloatQR::update (const FloatMatrix& u, const FloatMatrix& v) |
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470 { |
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|
471 warn_qrupdate_once (); |
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|
472 |
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|
473 octave_idx_type m = q.rows (); |
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|
474 octave_idx_type n = r.columns (); |
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|
475 |
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|
476 if (u.rows () != m || v.rows () != n || u.cols () != v.cols ()) |
8562
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|
477 (*current_liboctave_error_handler) ("qrupdate: dimensions mismatch"); |
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|
478 |
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|
479 init (q*r + u * v.transpose (), get_type ()); |
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|
480 } |
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|
481 |
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|
482 static |
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|
483 FloatMatrix insert_col (const FloatMatrix& a, octave_idx_type i, |
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|
484 const FloatColumnVector& x) |
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|
485 { |
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|
486 FloatMatrix retval (a.rows (), a.columns () + 1); |
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487 retval.assign (idx_vector::colon, idx_vector (0, i), |
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|
488 a.index (idx_vector::colon, idx_vector (0, i))); |
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|
489 retval.assign (idx_vector::colon, idx_vector (i), x); |
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|
490 retval.assign (idx_vector::colon, idx_vector (i+1, retval.columns ()), |
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|
491 a.index (idx_vector::colon, idx_vector (i, a.columns ()))); |
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492 return retval; |
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|
493 } |
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|
494 |
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changeset
|
495 static |
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|
496 FloatMatrix insert_row (const FloatMatrix& a, octave_idx_type i, |
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|
497 const FloatRowVector& x) |
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498 { |
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|
499 FloatMatrix retval (a.rows () + 1, a.columns ()); |
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|
500 retval.assign (idx_vector (0, i), idx_vector::colon, |
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|
501 a.index (idx_vector (0, i), idx_vector::colon)); |
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|
502 retval.assign (idx_vector (i), idx_vector::colon, x); |
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503 retval.assign (idx_vector (i+1, retval.rows ()), idx_vector::colon, |
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|
504 a.index (idx_vector (i, a.rows ()), idx_vector::colon)); |
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505 return retval; |
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|
506 } |
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|
507 |
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changeset
|
508 static |
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|
509 FloatMatrix delete_col (const FloatMatrix& a, octave_idx_type i) |
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510 { |
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|
511 FloatMatrix retval = a; |
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512 retval.delete_elements (1, idx_vector (i)); |
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513 return retval; |
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|
514 } |
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|
515 |
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diff
changeset
|
516 static |
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|
517 FloatMatrix delete_row (const FloatMatrix& a, octave_idx_type i) |
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518 { |
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|
519 FloatMatrix retval = a; |
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520 retval.delete_elements (0, idx_vector (i)); |
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521 return retval; |
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|
522 } |
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|
523 |
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diff
changeset
|
524 static |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
525 FloatMatrix shift_cols (const FloatMatrix& a, |
8562
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|
526 octave_idx_type i, octave_idx_type j) |
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|
527 { |
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changeset
|
528 octave_idx_type n = a.columns (); |
19339
3a2a0b72b91b
Swap row vector for column vector in cset d47e50953abc.
Rik <rik@octave.org>
parents:
19338
diff
changeset
|
529 Array<octave_idx_type> p (dim_vector (n, 1)); |
8562
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|
530 for (octave_idx_type k = 0; k < n; k++) p(k) = k; |
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|
531 if (i < j) |
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|
532 { |
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diff
changeset
|
533 for (octave_idx_type k = i; k < j; k++) p(k) = k+1; |
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|
534 p(j) = i; |
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|
535 } |
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changeset
|
536 else if (j < i) |
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|
537 { |
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changeset
|
538 p(j) = i; |
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|
539 for (octave_idx_type k = j+1; k < i+1; k++) p(k) = k-1; |
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diff
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|
540 } |
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parents:
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diff
changeset
|
541 |
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changeset
|
542 return a.index (idx_vector::colon, idx_vector (p)); |
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|
543 } |
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diff
changeset
|
544 |
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diff
changeset
|
545 void |
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changeset
|
546 FloatQR::insert_col (const FloatColumnVector& u, octave_idx_type j) |
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diff
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|
547 { |
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changeset
|
548 warn_qrupdate_once (); |
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diff
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|
549 |
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|
550 octave_idx_type m = q.rows (); |
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|
551 octave_idx_type n = r.columns (); |
a6edd5c23cb5
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|
552 |
20232
a9574e3c6e9e
Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents:
19697
diff
changeset
|
553 if (u.numel () != m) |
8562
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diff
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|
554 (*current_liboctave_error_handler) ("qrinsert: dimensions mismatch"); |
21136
7cac4e7458f2
maint: clean up code around calls to current_liboctave_error_handler.
Rik <rik@octave.org>
parents:
20232
diff
changeset
|
555 if (j < 0 || j > n) |
8562
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diff
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|
556 (*current_liboctave_error_handler) ("qrinsert: index out of range"); |
21136
7cac4e7458f2
maint: clean up code around calls to current_liboctave_error_handler.
Rik <rik@octave.org>
parents:
20232
diff
changeset
|
557 |
7cac4e7458f2
maint: clean up code around calls to current_liboctave_error_handler.
Rik <rik@octave.org>
parents:
20232
diff
changeset
|
558 init (::insert_col (q*r, j, u), get_type ()); |
8562
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|
559 } |
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diff
changeset
|
560 |
a6edd5c23cb5
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Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
561 void |
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diff
changeset
|
562 FloatQR::insert_col (const FloatMatrix& u, const Array<octave_idx_type>& j) |
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parents:
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diff
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|
563 { |
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parents:
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diff
changeset
|
564 warn_qrupdate_once (); |
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diff
changeset
|
565 |
a6edd5c23cb5
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Jaroslav Hajek <highegg@gmail.com>
parents:
8547
diff
changeset
|
566 octave_idx_type m = q.rows (); |
a6edd5c23cb5
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Jaroslav Hajek <highegg@gmail.com>
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|
567 octave_idx_type n = r.columns (); |
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diff
changeset
|
568 |
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diff
changeset
|
569 Array<octave_idx_type> jsi; |
8721
e9cb742df9eb
imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents:
8597
diff
changeset
|
570 Array<octave_idx_type> js = j.sort (jsi, 0, ASCENDING); |
20232
a9574e3c6e9e
Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents:
19697
diff
changeset
|
571 octave_idx_type nj = js.numel (); |
8562
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|
572 bool dups = false; |
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|
573 for (octave_idx_type i = 0; i < nj - 1; i++) |
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|
574 dups = dups && js(i) == js(i+1); |
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diff
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|
575 |
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changeset
|
576 if (dups) |
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parents:
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diff
changeset
|
577 (*current_liboctave_error_handler) ("qrinsert: duplicate index detected"); |
21136
7cac4e7458f2
maint: clean up code around calls to current_liboctave_error_handler.
Rik <rik@octave.org>
parents:
20232
diff
changeset
|
578 if (u.numel () != m || u.columns () != nj) |
8562
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parents:
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diff
changeset
|
579 (*current_liboctave_error_handler) ("qrinsert: dimensions mismatch"); |
21136
7cac4e7458f2
maint: clean up code around calls to current_liboctave_error_handler.
Rik <rik@octave.org>
parents:
20232
diff
changeset
|
580 if (nj > 0 && (js(0) < 0 || js(nj-1) > n)) |
8562
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diff
changeset
|
581 (*current_liboctave_error_handler) ("qrinsert: index out of range"); |
21136
7cac4e7458f2
maint: clean up code around calls to current_liboctave_error_handler.
Rik <rik@octave.org>
parents:
20232
diff
changeset
|
582 |
7cac4e7458f2
maint: clean up code around calls to current_liboctave_error_handler.
Rik <rik@octave.org>
parents:
20232
diff
changeset
|
583 if (nj > 0) |
8562
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diff
changeset
|
584 { |
a6edd5c23cb5
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parents:
8547
diff
changeset
|
585 FloatMatrix a = q*r; |
20232
a9574e3c6e9e
Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents:
19697
diff
changeset
|
586 for (octave_idx_type i = 0; i < js.numel (); i++) |
8562
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diff
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|
587 a = ::insert_col (a, js(i), u.column (i)); |
a6edd5c23cb5
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diff
changeset
|
588 init (a, get_type ()); |
a6edd5c23cb5
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diff
changeset
|
589 } |
a6edd5c23cb5
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parents:
8547
diff
changeset
|
590 } |
a6edd5c23cb5
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parents:
8547
diff
changeset
|
591 |
a6edd5c23cb5
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Jaroslav Hajek <highegg@gmail.com>
parents:
8547
diff
changeset
|
592 void |
a6edd5c23cb5
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Jaroslav Hajek <highegg@gmail.com>
parents:
8547
diff
changeset
|
593 FloatQR::delete_col (octave_idx_type j) |
a6edd5c23cb5
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
594 { |
a6edd5c23cb5
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parents:
8547
diff
changeset
|
595 warn_qrupdate_once (); |
a6edd5c23cb5
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Jaroslav Hajek <highegg@gmail.com>
parents:
8547
diff
changeset
|
596 |
a6edd5c23cb5
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Jaroslav Hajek <highegg@gmail.com>
parents:
8547
diff
changeset
|
597 octave_idx_type n = r.columns (); |
a6edd5c23cb5
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598 |
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599 if (j < 0 || j > n-1) |
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600 (*current_liboctave_error_handler) ("qrdelete: index out of range"); |
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601 |
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602 init (::delete_col (q*r, j), get_type ()); |
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603 } |
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604 |
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605 void |
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606 FloatQR::delete_col (const Array<octave_idx_type>& j) |
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607 { |
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608 warn_qrupdate_once (); |
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609 |
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610 octave_idx_type n = r.columns (); |
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611 |
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612 Array<octave_idx_type> jsi; |
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613 Array<octave_idx_type> js = j.sort (jsi, 0, DESCENDING); |
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parents:
19697
diff
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614 octave_idx_type nj = js.numel (); |
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615 bool dups = false; |
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616 for (octave_idx_type i = 0; i < nj - 1; i++) |
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617 dups = dups && js(i) == js(i+1); |
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618 |
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619 if (dups) |
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620 (*current_liboctave_error_handler) ("qrinsert: duplicate index detected"); |
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621 if (nj > 0 && (js(0) > n-1 || js(nj-1) < 0)) |
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622 (*current_liboctave_error_handler) ("qrinsert: index out of range"); |
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623 |
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624 if (nj > 0) |
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625 { |
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626 FloatMatrix a = q*r; |
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parents:
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627 for (octave_idx_type i = 0; i < js.numel (); i++) |
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628 a = ::delete_col (a, js(i)); |
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629 init (a, get_type ()); |
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630 } |
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631 } |
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632 |
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633 void |
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634 FloatQR::insert_row (const FloatRowVector& u, octave_idx_type j) |
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635 { |
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636 warn_qrupdate_once (); |
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637 |
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638 octave_idx_type m = r.rows (); |
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639 octave_idx_type n = r.columns (); |
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640 |
20232
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parents:
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diff
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641 if (! q.is_square () || u.numel () != n) |
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642 (*current_liboctave_error_handler) ("qrinsert: dimensions mismatch"); |
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643 if (j < 0 || j > m) |
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644 (*current_liboctave_error_handler) ("qrinsert: index out of range"); |
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645 |
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646 init (::insert_row (q*r, j, u), get_type ()); |
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647 } |
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648 |
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649 void |
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650 FloatQR::delete_row (octave_idx_type j) |
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651 { |
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652 warn_qrupdate_once (); |
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653 |
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654 octave_idx_type m = r.rows (); |
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655 |
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656 if (! q.is_square ()) |
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657 (*current_liboctave_error_handler) ("qrdelete: dimensions mismatch"); |
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658 if (j < 0 || j > m-1) |
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659 (*current_liboctave_error_handler) ("qrdelete: index out of range"); |
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parents:
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diff
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|
660 |
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661 init (::delete_row (q*r, j), get_type ()); |
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662 } |
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663 |
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664 void |
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665 FloatQR::shift_cols (octave_idx_type i, octave_idx_type j) |
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666 { |
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667 warn_qrupdate_once (); |
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|
668 |
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|
669 octave_idx_type n = r.columns (); |
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670 |
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671 if (i < 0 || i > n-1 || j < 0 || j > n-1) |
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672 (*current_liboctave_error_handler) ("qrshift: index out of range"); |
21136
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diff
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|
673 |
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20232
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|
674 init (::shift_cols (q*r, i, j), get_type ()); |
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675 } |
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|
676 |
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|
677 #endif |