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annotate liboctave/array/fRowVector.cc @ 21202:f7121e111991

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maint: indent #ifdef blocks in liboctave and src directories. * Array-C.cc, Array-b.cc, Array-ch.cc, Array-d.cc, Array-f.cc, Array-fC.cc, Array-i.cc, Array-idx-vec.cc, Array-s.cc, Array-str.cc, Array-util.cc, Array-voidp.cc, Array.cc, CColVector.cc, CDiagMatrix.cc, CMatrix.cc, CNDArray.cc, CRowVector.cc, CSparse.cc, CSparse.h, DiagArray2.cc, MArray-C.cc, MArray-d.cc, MArray-f.cc, MArray-fC.cc, MArray-i.cc, MArray-s.cc, MArray.cc, MDiagArray2.cc, MSparse-C.cc, MSparse-d.cc, MSparse.h, MatrixType.cc, PermMatrix.cc, Range.cc, Sparse-C.cc, Sparse-b.cc, Sparse-d.cc, Sparse.cc, boolMatrix.cc, boolNDArray.cc, boolSparse.cc, chMatrix.cc, chNDArray.cc, dColVector.cc, dDiagMatrix.cc, dMatrix.cc, dNDArray.cc, dRowVector.cc, dSparse.cc, dSparse.h, dim-vector.cc, fCColVector.cc, fCDiagMatrix.cc, fCMatrix.cc, fCNDArray.cc, fCRowVector.cc, fColVector.cc, fDiagMatrix.cc, fMatrix.cc, fNDArray.cc, fRowVector.cc, idx-vector.cc, int16NDArray.cc, int32NDArray.cc, int64NDArray.cc, int8NDArray.cc, intNDArray.cc, uint16NDArray.cc, uint32NDArray.cc, uint64NDArray.cc, uint8NDArray.cc, blaswrap.c, cquit.c, f77-extern.cc, f77-fcn.c, f77-fcn.h, lo-error.c, quit.cc, quit.h, CmplxAEPBAL.cc, CmplxCHOL.cc, CmplxGEPBAL.cc, CmplxHESS.cc, CmplxLU.cc, CmplxQR.cc, CmplxQRP.cc, CmplxSCHUR.cc, CmplxSVD.cc, CollocWt.cc, DASPK.cc, DASRT.cc, DASSL.cc, EIG.cc, LSODE.cc, ODES.cc, Quad.cc, base-lu.cc, base-qr.cc, dbleAEPBAL.cc, dbleCHOL.cc, dbleGEPBAL.cc, dbleHESS.cc, dbleLU.cc, dbleQR.cc, dbleQRP.cc, dbleSCHUR.cc, dbleSVD.cc, eigs-base.cc, fCmplxAEPBAL.cc, fCmplxCHOL.cc, fCmplxGEPBAL.cc, fCmplxHESS.cc, fCmplxLU.cc, fCmplxQR.cc, fCmplxQRP.cc, fCmplxSCHUR.cc, fCmplxSVD.cc, fEIG.cc, floatAEPBAL.cc, floatCHOL.cc, floatGEPBAL.cc, floatHESS.cc, floatLU.cc, floatQR.cc, floatQRP.cc, floatSCHUR.cc, floatSVD.cc, lo-mappers.cc, lo-specfun.cc, oct-convn.cc, oct-fftw.cc, oct-fftw.h, oct-norm.cc, oct-rand.cc, oct-spparms.cc, randgamma.c, randmtzig.c, randpoisson.c, sparse-chol.cc, sparse-dmsolve.cc, sparse-lu.cc, sparse-qr.cc, mx-defs.h, dir-ops.cc, file-ops.cc, file-stat.cc, lo-sysdep.cc, mach-info.cc, oct-env.cc, oct-group.cc, oct-openmp.h, oct-passwd.cc, oct-syscalls.cc, oct-time.cc, oct-uname.cc, pathlen.h, sysdir.h, syswait.h, cmd-edit.cc, cmd-hist.cc, data-conv.cc, f2c-main.c, glob-match.cc, lo-array-errwarn.cc, lo-array-gripes.cc, lo-cutils.c, lo-cutils.h, lo-ieee.cc, lo-math.h, lo-regexp.cc, lo-utils.cc, oct-base64.cc, oct-glob.cc, oct-inttypes.cc, oct-inttypes.h, oct-locbuf.cc, oct-mutex.cc, oct-refcount.h, oct-rl-edit.c, oct-rl-hist.c, oct-shlib.cc, oct-sort.cc, pathsearch.cc, singleton-cleanup.cc, sparse-sort.cc, sparse-util.cc, statdefs.h, str-vec.cc, unwind-prot.cc, url-transfer.cc, display-available.h, main-cli.cc, main-gui.cc, main.in.cc, mkoctfile.in.cc, octave-config.in.cc, shared-fcns.h: indent #ifdef blocks in liboctave and src directories.
author Rik <rik@octave.org>
date Sat, 06 Feb 2016 06:40:13 -0800
parents 7cac4e7458f2
children 40de9f8f23a6
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1 // RowVector manipulations.
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2 /*
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3
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4197fc428c7d maint: Update copyright notices for 2015.
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4 Copyright (C) 1994-2015 John W. Eaton
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5
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6 This file is part of Octave.
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7
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8 Octave is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 3 of the License, or (at your
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11 option) any later version.
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12
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13 Octave is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with Octave; see the file COPYING. If not, see
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20 <http://www.gnu.org/licenses/>.
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21
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22 */
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23
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24 #ifdef HAVE_CONFIG_H
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25 # include <config.h>
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26 #endif
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27
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28 #include <iostream>
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29
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30 #include "Array-util.h"
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31 #include "f77-fcn.h"
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32 #include "functor.h"
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33 #include "lo-error.h"
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34 #include "mx-base.h"
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35 #include "mx-inlines.cc"
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36 #include "oct-cmplx.h"
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37
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38 // Fortran functions we call.
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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
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43 F77_FUNC (sgemv, SGEMV) (F77_CONST_CHAR_ARG_DECL,
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44 const octave_idx_type&, const octave_idx_type&,
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45 const float&, const float*,
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46 const octave_idx_type&, const float*,
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47 const octave_idx_type&, const float&,
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48 float*, const octave_idx_type&
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49 F77_CHAR_ARG_LEN_DECL);
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50 F77_RET_T
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51 F77_FUNC (xsdot, XSDOT) (const octave_idx_type&, const float*,
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52 const octave_idx_type&, const float*,
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53 const octave_idx_type&, float&);
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54 }
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55
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56 // Row Vector class.
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57
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58 bool
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59 FloatRowVector::operator == (const FloatRowVector& a) const
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60 {
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61 octave_idx_type len = numel ();
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62 if (len != a.numel ())
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63 return 0;
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64 return mx_inline_equal (len, data (), a.data ());
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65 }
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66
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67 bool
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68 FloatRowVector::operator != (const FloatRowVector& a) const
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69 {
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70 return !(*this == a);
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71 }
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72
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73 FloatRowVector&
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74 FloatRowVector::insert (const FloatRowVector& a, octave_idx_type c)
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75 {
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76 octave_idx_type a_len = a.numel ();
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77
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78 if (c < 0 || c + a_len > numel ())
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79 (*current_liboctave_error_handler) ("range error for insert");
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80
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81 if (a_len > 0)
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82 {
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83 make_unique ();
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84
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85 for (octave_idx_type i = 0; i < a_len; i++)
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86 xelem (c+i) = a.elem (i);
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87 }
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88
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89 return *this;
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90 }
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91
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92 FloatRowVector&
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93 FloatRowVector::fill (float val)
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94 {
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95 octave_idx_type len = numel ();
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96
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97 if (len > 0)
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98 {
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99 make_unique ();
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100
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101 for (octave_idx_type i = 0; i < len; i++)
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102 xelem (i) = val;
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103 }
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104
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105 return *this;
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106 }
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107
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108 FloatRowVector&
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109 FloatRowVector::fill (float val, octave_idx_type c1, octave_idx_type c2)
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110 {
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111 octave_idx_type len = numel ();
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112
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113 if (c1 < 0 || c2 < 0 || c1 >= len || c2 >= len)
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114 (*current_liboctave_error_handler) ("range error for fill");
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115
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116 if (c1 > c2) { std::swap (c1, c2); }
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117
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118 if (c2 >= c1)
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119 {
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120 make_unique ();
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121
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122 for (octave_idx_type i = c1; i <= c2; i++)
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123 xelem (i) = val;
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124 }
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125
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126 return *this;
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127 }
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128
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129 FloatRowVector
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130 FloatRowVector::append (const FloatRowVector& a) const
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131 {
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132 octave_idx_type len = numel ();
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133 octave_idx_type nc_insert = len;
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134 FloatRowVector retval (len + a.numel ());
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135 retval.insert (*this, 0);
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136 retval.insert (a, nc_insert);
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137 return retval;
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138 }
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139
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140 FloatColumnVector
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141 FloatRowVector::transpose (void) const
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142 {
14846
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Rik <octave@nomad.inbox5.com>
parents: 14138
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143 return MArray<float>::transpose ();
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144 }
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145
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146 FloatRowVector
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147 real (const FloatComplexRowVector& a)
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148 {
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149 return do_mx_unary_op<float, FloatComplex> (a, mx_inline_real);
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150 }
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151
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152 FloatRowVector
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153 imag (const FloatComplexRowVector& a)
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154 {
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155 return do_mx_unary_op<float, FloatComplex> (a, mx_inline_imag);
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156 }
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157
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158 FloatRowVector
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159 FloatRowVector::extract (octave_idx_type c1, octave_idx_type c2) const
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160 {
17663
7975d75f933c Use std::swap in liboctave instead of temporary variable.
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parents: 15271
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161 if (c1 > c2) { std::swap (c1, c2); }
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162
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163 octave_idx_type new_c = c2 - c1 + 1;
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164
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165 FloatRowVector result (new_c);
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166
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167 for (octave_idx_type i = 0; i < new_c; i++)
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168 result.xelem (i) = elem (c1+i);
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169
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170 return result;
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171 }
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172
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173 FloatRowVector
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174 FloatRowVector::extract_n (octave_idx_type r1, octave_idx_type n) const
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175 {
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176 FloatRowVector result (n);
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177
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178 for (octave_idx_type i = 0; i < n; i++)
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179 result.xelem (i) = elem (r1+i);
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180
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181 return result;
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182 }
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183
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184 // row vector by matrix -> row vector
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185
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186 FloatRowVector
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187 operator * (const FloatRowVector& v, const FloatMatrix& a)
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188 {
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189 FloatRowVector retval;
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190
20232
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 19697
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191 octave_idx_type len = v.numel ();
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192
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193 octave_idx_type a_nr = a.rows ();
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194 octave_idx_type a_nc = a.cols ();
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195
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196 if (a_nr != len)
21100
e39e05d90788 Switch gripe_XXX to either err_XXX or warn_XXX naming scheme.
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197 err_nonconformant ("operator *", 1, len, a_nr, a_nc);
21120
499b851fbfae Replace pattern if/err_XXX/else/code with if/err_XXX/ code.
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198
499b851fbfae Replace pattern if/err_XXX/else/code with if/err_XXX/ code.
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parents: 21100
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199 if (len == 0)
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200 retval.resize (a_nc, 0.0);
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201 else
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202 {
21120
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203 // Transpose A to form A'*x == (x'*A)'
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204
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205 octave_idx_type ld = a_nr;
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206
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207 retval.resize (a_nc);
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208 float *y = retval.fortran_vec ();
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209
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210 F77_XFCN (sgemv, SGEMV, (F77_CONST_CHAR_ARG2 ("T", 1),
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211 a_nr, a_nc, 1.0, a.data (),
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212 ld, v.data (), 1, 0.0, y, 1
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213 F77_CHAR_ARG_LEN (1)));
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214 }
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215
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216 return retval;
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217 }
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218
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219 // other operations
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220
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221 float
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222 FloatRowVector::min (void) const
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223 {
20232
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Carnë Draug <carandraug@octave.org>
parents: 19697
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224 octave_idx_type len = numel ();
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225 if (len == 0)
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226 return 0;
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227
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228 float res = elem (0);
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229
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230 for (octave_idx_type i = 1; i < len; i++)
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231 if (elem (i) < res)
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232 res = elem (i);
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233
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234 return res;
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235 }
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236
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237 float
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238 FloatRowVector::max (void) const
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239 {
20232
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 19697
diff changeset
240 octave_idx_type len = numel ();
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241 if (len == 0)
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242 return 0;
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243
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244 float res = elem (0);
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245
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246 for (octave_idx_type i = 1; i < len; i++)
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247 if (elem (i) > res)
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248 res = elem (i);
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249
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250 return res;
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251 }
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252
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253 std::ostream&
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254 operator << (std::ostream& os, const FloatRowVector& a)
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255 {
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256 // int field_width = os.precision () + 7;
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257
20232
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 19697
diff changeset
258 for (octave_idx_type i = 0; i < a.numel (); i++)
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259 os << " " /* setw (field_width) */ << a.elem (i);
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260 return os;
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261 }
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262
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diff changeset
263 std::istream&
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diff changeset
264 operator >> (std::istream& is, FloatRowVector& a)
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265 {
20232
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 19697
diff changeset
266 octave_idx_type len = a.numel ();
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267
8999
dc07bc4157b8 allow empty matrices in stream input operators
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
268 if (len > 0)
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269 {
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270 float tmp;
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271 for (octave_idx_type i = 0; i < len; i++)
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272 {
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273 is >> tmp;
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274 if (is)
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275 a.elem (i) = tmp;
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276 else
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277 break;
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278 }
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279 }
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280 return is;
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281 }
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282
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283 // other operations
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284
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285 FloatRowVector
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286 linspace (float x1, float x2, octave_idx_type n)
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287 {
20466
16b9ec39ff46 Return empty matrix when linspace called with 0 points (bug #45820)
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parents: 20232
diff changeset
288 NoAlias<FloatRowVector> retval;
9653
e087d7c77ff9 improve linspace in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 9550
diff changeset
289
20466
16b9ec39ff46 Return empty matrix when linspace called with 0 points (bug #45820)
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parents: 20232
diff changeset
290 if (n < 1)
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parents: 20232
diff changeset
291 return retval;
16b9ec39ff46 Return empty matrix when linspace called with 0 points (bug #45820)
Rik <rik@octave.org>
parents: 20232
diff changeset
292 else
16b9ec39ff46 Return empty matrix when linspace called with 0 points (bug #45820)
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parents: 20232
diff changeset
293 retval.clear (n);
16b9ec39ff46 Return empty matrix when linspace called with 0 points (bug #45820)
Rik <rik@octave.org>
parents: 20232
diff changeset
294
16b9ec39ff46 Return empty matrix when linspace called with 0 points (bug #45820)
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parents: 20232
diff changeset
295 retval(0) = x1;
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296
9653
e087d7c77ff9 improve linspace in liboctave
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parents: 9550
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297 float delta = (x2 - x1) / (n - 1);
e087d7c77ff9 improve linspace in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 9550
diff changeset
298 for (octave_idx_type i = 1; i < n-1; i++)
9658
3429c956de6f extend linspace & fix up liboctave rewrite
Jaroslav Hajek <highegg@gmail.com>
parents: 9653
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299 retval(i) = x1 + i*delta;
20466
16b9ec39ff46 Return empty matrix when linspace called with 0 points (bug #45820)
Rik <rik@octave.org>
parents: 20232
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300
9653
e087d7c77ff9 improve linspace in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 9550
diff changeset
301 retval(n-1) = x2;
7789
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302
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303 return retval;
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304 }
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305
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306 // row vector by column vector -> scalar
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307
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308 float
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309 operator * (const FloatRowVector& v, const FloatColumnVector& a)
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310 {
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311 float retval = 0.0;
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312
20232
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 19697
diff changeset
313 octave_idx_type len = v.numel ();
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314
20232
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 19697
diff changeset
315 octave_idx_type a_len = a.numel ();
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316
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317 if (len != a_len)
21100
e39e05d90788 Switch gripe_XXX to either err_XXX or warn_XXX naming scheme.
Rik <rik@octave.org>
parents: 20466
diff changeset
318 err_nonconformant ("operator *", len, a_len);
21120
499b851fbfae Replace pattern if/err_XXX/else/code with if/err_XXX/ code.
Rik <rik@octave.org>
parents: 21100
diff changeset
319
499b851fbfae Replace pattern if/err_XXX/else/code with if/err_XXX/ code.
Rik <rik@octave.org>
parents: 21100
diff changeset
320 if (len != 0)
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321 F77_FUNC (xsdot, XSDOT) (len, v.data (), 1, a.data (), 1, retval);
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322
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323 return retval;
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324 }
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325
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326 FloatComplex
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327 operator * (const FloatRowVector& v, const FloatComplexColumnVector& a)
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328 {
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329 FloatComplexRowVector tmp (v);
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330 return tmp * a;
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331 }