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annotate src/ov-base-diag.cc @ 8367:445d27d79f4e

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support permutation matrix objects
author Jaroslav Hajek <highegg@gmail.com>
date Thu, 04 Dec 2008 08:31:56 +0100
parents 8b1a2555c4e2
children c43481a19bfe
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1 /*
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2
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3 Copyright (C) 2008 Jaroslav Hajek <highegg@gmail.com>
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #ifdef HAVE_CONFIG_H
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24 #include <config.h>
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25 #endif
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26
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27 #include <iostream>
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28
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29 #include "mach-info.h"
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30
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31 #include "ov-base.h"
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32 #include "ov-base-mat.h"
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33 #include "pr-output.h"
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34 #include "error.h"
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35 #include "gripes.h"
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36 #include "oct-stream.h"
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37 #include "ops.h"
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38
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39 template <class DMT, class MT>
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40 octave_value
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41 octave_base_diag<DMT, MT>::subsref (const std::string& type,
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42 const std::list<octave_value_list>& idx)
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43 {
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44 octave_value retval;
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45
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46 switch (type[0])
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47 {
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48 case '(':
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49 retval = do_index_op (idx.front ());
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50 break;
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51
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52 case '{':
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53 case '.':
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54 {
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55 std::string nm = type_name ();
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56 error ("%s cannot be indexed with %c", nm.c_str (), type[0]);
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57 }
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58 break;
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59
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60 default:
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61 panic_impossible ();
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62 }
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63
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64 return retval.next_subsref (type, idx);
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65 }
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66
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67 template <class DMT, class MT>
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68 octave_value
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69 octave_base_diag<DMT, MT>::do_index_op (const octave_value_list& idx,
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70 bool resize_ok)
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71 {
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72 octave_value retval;
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73 typedef typename DMT::element_type el_type;
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74 el_type one = 1;
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75
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76 octave_idx_type nidx = idx.length ();
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77 idx_vector idx0, idx1;
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78 if (nidx == 2)
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79 {
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80 idx0 = idx(0).index_vector ();
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81 idx1 = idx(1).index_vector ();
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82 }
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83
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84 // This hack is to allow constructing permutation matrices using
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85 // eye(n)(p,:), eye(n)(:,q) && eye(n)(p,q) where p & q are permutation
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86 // vectors.
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87 // Note that, for better consistency, eye(n)(:,:) still converts to a full
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88 // matrix.
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89 // FIXME: This check is probably unnecessary for complex matrices.
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90 if (! error_state && nidx == 2 && matrix.is_multiple_of_identity (one))
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91 {
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92
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93 bool left = idx0.is_permutation (matrix.rows ());
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94 bool right = idx1.is_permutation (matrix.cols ());
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95
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96 if (left && right)
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97 {
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98 if (idx0.is_colon ()) left = false;
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99 if (idx1.is_colon ()) right = false;
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100 if (left && right)
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101 retval = octave_value (PermMatrix (idx0, false) * PermMatrix (idx1, true),
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102 is_single_type ());
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103 else if (left)
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104 retval = octave_value (PermMatrix (idx0, false),
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105 is_single_type ());
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106 else if (right)
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107 retval = octave_value (PermMatrix (idx1, true),
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108 is_single_type ());
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109 }
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110 }
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111
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112 // if error_state is set, we've already griped.
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113 if (! error_state && ! retval.is_defined ())
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114 {
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115 if (nidx == 2 && ! resize_ok &&
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116 idx0.is_scalar () && idx1.is_scalar ())
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117 {
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118 // FIXME: the proxy mechanism of DiagArray2 causes problems here.
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119 retval = el_type (matrix.checkelem (idx0(0), idx1(0)));
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120 }
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121 else
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122 retval = to_dense ().do_index_op (idx, resize_ok);
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123 }
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124
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125 return retval;
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126 }
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127
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128 template <class DMT, class MT>
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129 octave_value
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130 octave_base_diag<DMT, MT>::resize (const dim_vector& dv, bool fill) const
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131 {
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132 octave_value retval;
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133 if (dv.length () == 2)
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134 {
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135 DMT rm (matrix);
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136 rm.resize (dv(0), dv(1));
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137 retval = rm;
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138 }
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139 else
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140 retval = to_dense ().resize (dv, fill);
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141 return retval;
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142 }
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143
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144 template <class DMT, class MT>
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145 bool
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146 octave_base_diag<DMT, MT>::is_true (void) const
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147 {
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148 return to_dense ().is_true ();
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149 }
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150
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151 template <class DMT, class MT>
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152 bool
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153 octave_base_diag<DMT, MT>::valid_as_scalar_index (void) const
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154 {
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155 // FIXME
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156 return false;
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157 }
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158
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159 // FIXME: this should be achieveable using ::real
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160 template <class T> inline T helper_getreal (T x) { return x; }
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161 template <class T> inline T helper_getreal (std::complex<T> x) { return x.real (); }
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162 // FIXME: we really need some traits so that ad hoc hooks like this are not necessary
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163 template <class T> inline T helper_iscomplex (T) { return false; }
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164 template <class T> inline T helper_iscomplex (std::complex<T>) { return true; }
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165
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166 template <class DMT, class MT>
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167 double
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168 octave_base_diag<DMT, MT>::double_value (bool force_conversion) const
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169 {
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170 double retval = lo_ieee_nan_value ();
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171 typedef typename DMT::element_type el_type;
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172
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173 if (helper_iscomplex (el_type ()) && ! force_conversion)
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174 gripe_implicit_conversion ("Octave:imag-to-real",
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175 "complex matrix", "real scalar");
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176
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177 if (numel () > 0)
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178 {
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179 gripe_implicit_conversion ("Octave:array-as-scalar",
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180 type_name (), "real scalar");
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181
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182 retval = helper_getreal (el_type (matrix (0, 0)));
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183 }
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184 else
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185 gripe_invalid_conversion (type_name (), "real scalar");
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186
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187 return retval;
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188 }
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189
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190 template <class DMT, class MT>
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191 float
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192 octave_base_diag<DMT, MT>::float_value (bool force_conversion) const
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193 {
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194 float retval = lo_ieee_float_nan_value ();
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195 typedef typename DMT::element_type el_type;
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196
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197 if (helper_iscomplex (el_type ()) && ! force_conversion)
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198 gripe_implicit_conversion ("Octave:imag-to-real",
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199 "complex matrix", "real scalar");
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200
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201 if (numel () > 0)
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202 {
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203 gripe_implicit_conversion ("Octave:array-as-scalar",
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204 type_name (), "real scalar");
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205
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206 retval = helper_getreal (el_type (matrix (0, 0)));
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207 }
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208 else
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209 gripe_invalid_conversion (type_name (), "real scalar");
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210
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211 return retval;
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212 }
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213
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214 template <class DMT, class MT>
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215 Complex
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216 octave_base_diag<DMT, MT>::complex_value (bool) const
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217 {
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218 double tmp = lo_ieee_nan_value ();
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219
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220 Complex retval (tmp, tmp);
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221
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222 if (rows () > 0 && columns () > 0)
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223 {
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224 gripe_implicit_conversion ("Octave:array-as-scalar",
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225 type_name (), "complex scalar");
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226
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227 retval = matrix (0, 0);
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228 }
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229 else
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230 gripe_invalid_conversion (type_name (), "complex scalar");
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231
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232 return retval;
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233 }
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234
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235 template <class DMT, class MT>
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236 FloatComplex
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237 octave_base_diag<DMT, MT>::float_complex_value (bool) const
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238 {
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239 float tmp = lo_ieee_float_nan_value ();
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240
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241 FloatComplex retval (tmp, tmp);
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242
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243 if (rows () > 0 && columns () > 0)
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244 {
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245 gripe_implicit_conversion ("Octave:array-as-scalar",
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246 type_name (), "complex scalar");
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247
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248 retval = matrix (0, 0);
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249 }
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250 else
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251 gripe_invalid_conversion (type_name (), "complex scalar");
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252
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253 return retval;
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254 }
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255
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256 template <class DMT, class MT>
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257 Matrix
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258 octave_base_diag<DMT, MT>::matrix_value (bool) const
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259 {
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260 return Matrix (diag_matrix_value ());
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261 }
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262
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263 template <class DMT, class MT>
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264 FloatMatrix
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265 octave_base_diag<DMT, MT>::float_matrix_value (bool) const
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266 {
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267 return FloatMatrix (float_diag_matrix_value ());
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268 }
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269
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270 template <class DMT, class MT>
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271 ComplexMatrix
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272 octave_base_diag<DMT, MT>::complex_matrix_value (bool) const
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273 {
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274 return ComplexMatrix (complex_diag_matrix_value ());
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275 }
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276
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277 template <class DMT, class MT>
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278 FloatComplexMatrix
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279 octave_base_diag<DMT, MT>::float_complex_matrix_value (bool) const
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280 {
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281 return FloatComplexMatrix (float_complex_diag_matrix_value ());
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282 }
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283
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284 template <class DMT, class MT>
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285 NDArray
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286 octave_base_diag<DMT, MT>::array_value (bool) const
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287 {
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288 return NDArray (matrix_value ());
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289 }
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290
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291 template <class DMT, class MT>
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292 FloatNDArray
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293 octave_base_diag<DMT, MT>::float_array_value (bool) const
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294 {
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295 return FloatNDArray (float_matrix_value ());
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296 }
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297
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298 template <class DMT, class MT>
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299 ComplexNDArray
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300 octave_base_diag<DMT, MT>::complex_array_value (bool) const
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301 {
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302 return ComplexNDArray (complex_matrix_value ());
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303 }
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304
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305 template <class DMT, class MT>
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306 FloatComplexNDArray
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307 octave_base_diag<DMT, MT>::float_complex_array_value (bool) const
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308 {
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309 return FloatComplexNDArray (float_complex_matrix_value ());
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310 }
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311
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312 template <class DMT, class MT>
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313 boolNDArray
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314 octave_base_diag<DMT, MT>::bool_array_value (bool warn) const
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315 {
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316 return to_dense ().bool_array_value (warn);
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317 }
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318
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319 template <class DMT, class MT>
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320 charNDArray
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321 octave_base_diag<DMT, MT>::char_array_value (bool warn) const
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322 {
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323 return to_dense ().char_array_value (warn);
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324 }
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325
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326 template <class DMT, class MT>
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327 SparseMatrix
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328 octave_base_diag<DMT, MT>::sparse_matrix_value (bool) const
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329 {
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330 return SparseMatrix (diag_matrix_value ());
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331 }
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332
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333 template <class DMT, class MT>
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334 SparseComplexMatrix
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335 octave_base_diag<DMT, MT>::sparse_complex_matrix_value (bool) const
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336 {
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337 return SparseComplexMatrix (complex_diag_matrix_value ());
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338 }
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339
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340 template <class DMT, class MT>
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341 idx_vector
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342 octave_base_diag<DMT, MT>::index_vector (void) const
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343 {
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344 return to_dense ().index_vector ();
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345 }
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346
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347 template <class DMT, class MT>
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348 octave_value
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349 octave_base_diag<DMT, MT>::convert_to_str_internal (bool pad, bool force, char type) const
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350 {
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351 return to_dense ().convert_to_str_internal (pad, force, type);
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352 }
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353
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354 template <class DMT, class MT>
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355 bool
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356 octave_base_diag<DMT, MT>::save_ascii (std::ostream& os)
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357 {
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358 // FIXME: this should probably save the matrix as diagonal.
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359 return to_dense ().save_ascii (os);
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360 }
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361
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362 template <class DMT, class MT>
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363 bool
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364 octave_base_diag<DMT, MT>::save_binary (std::ostream& os, bool& save_as_floats)
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365 {
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366 return to_dense ().save_binary (os, save_as_floats);
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367 }
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368
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369 #if defined (HAVE_HDF5)
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370
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371 template <class DMT, class MT>
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372 bool
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373 octave_base_diag<DMT, MT>::save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats)
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374 {
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375 return to_dense ().save_hdf5 (loc_id, name, save_as_floats);
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376 }
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377
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378 #endif
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379
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380 template <class DMT, class MT>
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381 void
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382 octave_base_diag<DMT, MT>::print_raw (std::ostream& os,
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383 bool pr_as_read_syntax) const
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384 {
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385 return to_dense ().print_raw (os, pr_as_read_syntax);
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386 }
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387
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388 template <class DMT, class MT>
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389 mxArray *
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390 octave_base_diag<DMT, MT>::as_mxArray (void) const
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391 {
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392 return to_dense ().as_mxArray ();
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393 }
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394
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395 template <class DMT, class MT>
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396 bool
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397 octave_base_diag<DMT, MT>::print_as_scalar (void) const
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398 {
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399 dim_vector dv = dims ();
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400
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401 return (dv.all_ones () || dv.any_zero ());
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402 }
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403
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404 template <class DMT, class MT>
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405 void
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406 octave_base_diag<DMT, MT>::print (std::ostream& os, bool pr_as_read_syntax) const
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407 {
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408 to_dense ().print (os, pr_as_read_syntax);
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409 }
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410 template <class DMT, class MT>
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411 int
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412 octave_base_diag<DMT, MT>::write (octave_stream& os, int block_size,
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413 oct_data_conv::data_type output_type, int skip,
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414 oct_mach_info::float_format flt_fmt) const
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415 {
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416 return to_dense ().write (os, block_size, output_type, skip, flt_fmt);
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417 }
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418
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419 template <class DMT, class MT>
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420 void
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421 octave_base_diag<DMT, MT>::print_info (std::ostream& os,
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422 const std::string& prefix) const
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423 {
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424 matrix.print_info (os, prefix);
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425 }
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426
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427 template <class DMT, class MT>
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428 octave_value
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429 octave_base_diag<DMT, MT>::to_dense (void) const
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430 {
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431 if (! dense_cache.is_defined ())
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432 dense_cache = MT (matrix);
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433
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434 return dense_cache;
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435 }
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436
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437 #define FORWARD_MAPPER(MAP) \
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438 template <class DMT, class MT> \
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439 octave_value \
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440 octave_base_diag<DMT, MT>::MAP (void) const \
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441 { \
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442 return to_dense ().MAP (); \
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443 }
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444
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445 FORWARD_MAPPER (erf)
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446 FORWARD_MAPPER (erfc)
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447 FORWARD_MAPPER (gamma)
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448 FORWARD_MAPPER (lgamma)
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449 FORWARD_MAPPER (acos)
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450 FORWARD_MAPPER (acosh)
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451 FORWARD_MAPPER (angle)
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452 FORWARD_MAPPER (arg)
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453 FORWARD_MAPPER (asin)
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454 FORWARD_MAPPER (asinh)
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455 FORWARD_MAPPER (atan)
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456 FORWARD_MAPPER (atanh)
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457 FORWARD_MAPPER (ceil)
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458 FORWARD_MAPPER (cos)
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459 FORWARD_MAPPER (cosh)
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460 FORWARD_MAPPER (exp)
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461 FORWARD_MAPPER (expm1)
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462 FORWARD_MAPPER (fix)
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463 FORWARD_MAPPER (floor)
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464 FORWARD_MAPPER (log)
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465 FORWARD_MAPPER (log2)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
466 FORWARD_MAPPER (log10)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
467 FORWARD_MAPPER (log1p)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
468 FORWARD_MAPPER (round)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
469 FORWARD_MAPPER (roundb)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
470 FORWARD_MAPPER (signum)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
471 FORWARD_MAPPER (sin)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
472 FORWARD_MAPPER (sinh)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
473 FORWARD_MAPPER (sqrt)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
474 FORWARD_MAPPER (tan)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
475 FORWARD_MAPPER (tanh)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
476 FORWARD_MAPPER (finite)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
477 FORWARD_MAPPER (isinf)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
478 FORWARD_MAPPER (isna)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
479 FORWARD_MAPPER (isnan)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
480