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annotate src/ov-base-sparse.cc @ 15283:a95432e7309c stable release-3-6-3

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Version 3.6.3 released. * configure.ac (AC_INIT): Version is now 3.6.3. (OCTAVE_RELEASE_DATE): Now 2012-09-04.
author John W. Eaton <jwe@octave.org>
date Tue, 04 Sep 2012 13:17:13 -0400
parents aa491bd9e19b
children f7afecdd87ef
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2
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3 Copyright (C) 2004-2012 David Bateman
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4 Copyright (C) 1998-2004 Andy Adler
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5 Copyright (C) 2010 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 <iomanip>
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30 #include <iostream>
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31
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32 #include "oct-obj.h"
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33 #include "ov-base.h"
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34 #include "quit.h"
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35 #include "pr-output.h"
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36
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37 #include "byte-swap.h"
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38 #include "ls-oct-ascii.h"
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39 #include "ls-utils.h"
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40 #include "ls-hdf5.h"
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41
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42 #include "boolSparse.h"
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43 #include "ov-base-sparse.h"
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44 #include "pager.h"
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45
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46 template <class T>
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47 octave_value
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48 octave_base_sparse<T>::do_index_op (const octave_value_list& idx,
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49 bool resize_ok)
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50 {
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51 octave_value retval;
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52
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53 octave_idx_type n_idx = idx.length ();
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54
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55 switch (n_idx)
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56 {
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57 case 0:
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58 retval = matrix;
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59 break;
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60
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61 case 1:
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62 {
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63 idx_vector i = idx (0).index_vector ();
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64
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65 if (! error_state)
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66 retval = octave_value (matrix.index (i, resize_ok));
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67 }
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68 break;
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69
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70 case 2:
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71 {
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72 idx_vector i = idx (0).index_vector ();
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73
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74 if (! error_state)
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75 {
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76 idx_vector j = idx (1).index_vector ();
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77
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78 if (! error_state)
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79 retval = octave_value (matrix.index (i, j, resize_ok));
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80 }
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81 }
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82 break;
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83 default:
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84 error ("sparse indexing needs 1 or 2 indices");
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85 }
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86
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87 return retval;
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88 }
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89
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90 template <class T>
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91 octave_value
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92 octave_base_sparse<T>::subsref (const std::string& type,
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93 const std::list<octave_value_list>& idx)
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94 {
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95 octave_value retval;
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96
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97 switch (type[0])
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98 {
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99 case '(':
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100 retval = do_index_op (idx.front ());
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101 break;
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102
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103 case '{':
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104 case '.':
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105 {
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106 std::string nm = type_name ();
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107 error ("%s cannot be indexed with %c", nm.c_str (), type[0]);
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108 }
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109 break;
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110
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111 default:
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112 panic_impossible ();
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113 }
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114
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115 return retval.next_subsref (type, idx);
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116 }
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117
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118 template <class T>
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119 octave_value
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120 octave_base_sparse<T>::subsasgn (const std::string& type,
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121 const std::list<octave_value_list>& idx,
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122 const octave_value& rhs)
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123 {
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124 octave_value retval;
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125
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126 switch (type[0])
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127 {
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128 case '(':
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129 {
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130 if (type.length () == 1)
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131 retval = numeric_assign (type, idx, rhs);
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132 else
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133 {
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134 std::string nm = type_name ();
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135 error ("in indexed assignment of %s, last lhs index must be ()",
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136 nm.c_str ());
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137 }
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138 }
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139 break;
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140
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141 case '{':
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142 case '.':
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143 {
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144 if (is_empty ())
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145 {
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146 octave_value tmp = octave_value::empty_conv (type, rhs);
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147
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148 retval = tmp.subsasgn (type, idx, rhs);
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149 }
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150 else
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151 {
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152 std::string nm = type_name ();
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153 error ("%s cannot be indexed with %c", nm.c_str (), type[0]);
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154 }
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155 }
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156 break;
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diff changeset
157
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diff changeset
158 default:
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diff changeset
159 panic_impossible ();
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diff changeset
160 }
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diff changeset
161
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diff changeset
162 return retval;
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diff changeset
163 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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164
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165 template <class T>
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166 void
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167 octave_base_sparse<T>::assign (const octave_value_list& idx, const T& rhs)
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168 {
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169
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diff changeset
170 octave_idx_type len = idx.length ();
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171
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172 switch (len)
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173 {
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diff changeset
174 case 1:
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175 {
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176 idx_vector i = idx (0).index_vector ();
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177
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178 if (! error_state)
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diff changeset
179 matrix.assign (i, rhs);
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180
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181 break;
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182 }
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183
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184 case 2:
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185 {
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186 idx_vector i = idx (0).index_vector ();
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187
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188 if (! error_state)
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189 {
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190 idx_vector j = idx (1).index_vector ();
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191
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192 if (! error_state)
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193 matrix.assign (i, j, rhs);
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194 }
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195
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196 break;
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197 }
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198
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199 default:
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200 error ("sparse indexing needs 1 or 2 indices");
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201 }
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diff changeset
202
5322
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diff changeset
203
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204 // Invalidate matrix type.
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205 typ.invalidate_type ();
5164
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206 }
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207
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208 template <class MT>
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209 void
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diff changeset
210 octave_base_sparse<MT>::delete_elements (const octave_value_list& idx)
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211 {
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212 octave_idx_type len = idx.length ();
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213
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214 switch (len)
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215 {
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diff changeset
216 case 1:
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217 {
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diff changeset
218 idx_vector i = idx (0).index_vector ();
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219
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diff changeset
220 if (! error_state)
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diff changeset
221 matrix.delete_elements (i);
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222
fdccd69d26bd rewrite sparse null assignment (part 2)
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diff changeset
223 break;
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diff changeset
224 }
8150
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225
10490
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226 case 2:
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227 {
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diff changeset
228 idx_vector i = idx (0).index_vector ();
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229
fdccd69d26bd rewrite sparse null assignment (part 2)
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diff changeset
230 if (! error_state)
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diff changeset
231 {
fdccd69d26bd rewrite sparse null assignment (part 2)
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diff changeset
232 idx_vector j = idx (1).index_vector ();
8150
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diff changeset
233
10490
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diff changeset
234 if (! error_state)
fdccd69d26bd rewrite sparse null assignment (part 2)
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diff changeset
235 matrix.delete_elements (i, j);
fdccd69d26bd rewrite sparse null assignment (part 2)
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diff changeset
236 }
fdccd69d26bd rewrite sparse null assignment (part 2)
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diff changeset
237
fdccd69d26bd rewrite sparse null assignment (part 2)
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diff changeset
238 break;
fdccd69d26bd rewrite sparse null assignment (part 2)
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parents: 10421
diff changeset
239 }
fdccd69d26bd rewrite sparse null assignment (part 2)
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diff changeset
240
fdccd69d26bd rewrite sparse null assignment (part 2)
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diff changeset
241 default:
fdccd69d26bd rewrite sparse null assignment (part 2)
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diff changeset
242 error ("sparse indexing needs 1 or 2 indices");
fdccd69d26bd rewrite sparse null assignment (part 2)
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diff changeset
243 }
8150
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244
283989f2da9b make null assignment matlab compatible
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diff changeset
245 // Invalidate the matrix type
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246 typ.invalidate_type ();
283989f2da9b make null assignment matlab compatible
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diff changeset
247 }
283989f2da9b make null assignment matlab compatible
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diff changeset
248
5731
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249 template <class T>
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diff changeset
250 octave_value
5731
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diff changeset
251 octave_base_sparse<T>::resize (const dim_vector& dv, bool) const
11586
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diff changeset
252 {
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diff changeset
253 T retval (matrix);
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diff changeset
254 retval.resize (dv);
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diff changeset
255 return retval;
5731
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diff changeset
256 }
5164
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257
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258 template <class T>
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diff changeset
259 bool
5164
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260 octave_base_sparse<T>::is_true (void) const
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261 {
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diff changeset
262 bool retval = false;
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diff changeset
263 dim_vector dv = matrix.dims ();
5275
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diff changeset
264 octave_idx_type nel = dv.numel ();
10513
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diff changeset
265 octave_idx_type nz = nnz ();
5164
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266
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267 if (nz == nel && nel > 0)
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diff changeset
268 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
269 T t1 (matrix.reshape (dim_vector (nel, 1)));
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270
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271 SparseBoolMatrix t2 = t1.all ();
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272
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273 retval = t2(0);
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diff changeset
274 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
275
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
276 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
277 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
278
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
279 template <class T>
11586
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parents: 11523
diff changeset
280 bool
5164
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diff changeset
281 octave_base_sparse<T>::print_as_scalar (void) const
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diff changeset
282 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
283 dim_vector dv = dims ();
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diff changeset
284
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
285 return (dv.all_ones () || dv.any_zero ());
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diff changeset
286 }
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diff changeset
287
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
288 template <class T>
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diff changeset
289 void
5164
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290 octave_base_sparse<T>::print (std::ostream& os, bool pr_as_read_syntax) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
291 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
292 print_raw (os, pr_as_read_syntax);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
293 newline (os);
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diff changeset
294 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
295
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
296 template <class T>
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diff changeset
297 void
12df7854fa7c strip trailing whitespace from source files
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diff changeset
298 octave_base_sparse<T>::print_info (std::ostream& os,
10315
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diff changeset
299 const std::string& prefix) const
5164
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diff changeset
300 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
301 matrix.print_info (os, prefix);
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parents:
diff changeset
302 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
303
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
304 template <class T>
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jwe
parents:
diff changeset
305 void
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
306 octave_base_sparse<T>::print_raw (std::ostream& os,
10315
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parents: 10160
diff changeset
307 bool pr_as_read_syntax) const
5164
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diff changeset
308 {
5275
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diff changeset
309 octave_idx_type nr = matrix.rows ();
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diff changeset
310 octave_idx_type nc = matrix.cols ();
5604
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diff changeset
311 octave_idx_type nz = nnz ();
5164
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diff changeset
312
5775
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diff changeset
313 // FIXME -- this should probably all be handled by a
5355
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diff changeset
314 // separate octave_print_internal function that can handle format
cf44c749ba52 [project @ 2005-05-18 11:43:37 by jwe]
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diff changeset
315 // compact, loose, etc.
cf44c749ba52 [project @ 2005-05-18 11:43:37 by jwe]
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diff changeset
316
cf44c749ba52 [project @ 2005-05-18 11:43:37 by jwe]
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diff changeset
317 os << "Compressed Column Sparse (rows = " << nr
cf44c749ba52 [project @ 2005-05-18 11:43:37 by jwe]
jwe
parents: 5322
diff changeset
318 << ", cols = " << nc
7644
91d7440211e7 display percentage of elements that are nonzero when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
319 << ", nnz = " << nz;
91d7440211e7 display percentage of elements that are nonzero when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
320
14566
aa491bd9e19b avoid unnecessary index overflow error when printing sparse array (bug #35148)
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
321 // Avoid calling numel here since it can easily overflow
aa491bd9e19b avoid unnecessary index overflow error when printing sparse array (bug #35148)
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
322 // octave_idx_type even when there is no real problem storing the
aa491bd9e19b avoid unnecessary index overflow error when printing sparse array (bug #35148)
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
323 // sparse array.
aa491bd9e19b avoid unnecessary index overflow error when printing sparse array (bug #35148)
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
324
aa491bd9e19b avoid unnecessary index overflow error when printing sparse array (bug #35148)
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
325 double dnr = nr;
aa491bd9e19b avoid unnecessary index overflow error when printing sparse array (bug #35148)
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
326 double dnc = nc;
aa491bd9e19b avoid unnecessary index overflow error when printing sparse array (bug #35148)
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
327 double dnel = dnr * dnc;
7644
91d7440211e7 display percentage of elements that are nonzero when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
328
91d7440211e7 display percentage of elements that are nonzero when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
329 if (dnel > 0)
11439
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
330 {
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
331 double pct = (nz / dnel * 100);
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
332
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
333 int prec = 2;
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
334
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
335 // Display at least 2 significant figures and up to 4 as we
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
336 // approach 100%. Avoid having limited precision of the display
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
337 // result in reporting 100% for matrices that are not actually
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
338 // 100% full.
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
339
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
340 if (pct == 100)
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
341 prec = 3;
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
342 else
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
343 {
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
344 if (pct > 99.9)
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
345 prec = 4;
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
346 else if (pct > 99)
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
347 prec = 3;
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
348
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
349 if (pct > 99.99)
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
350 pct = 99.99;
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
351 }
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
352
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
353 os << " [" << std::setprecision (prec) << pct << "%]";
c2f44cba24c9 improve display of percentage full when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 10527
diff changeset
354 }
7644
91d7440211e7 display percentage of elements that are nonzero when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
355
91d7440211e7 display percentage of elements that are nonzero when printing sparse matrices
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
356 os << ")\n";
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
357
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
358 // add one to the printed indices to go from
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
359 // zero-based to one-based arrays
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
360
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
361 if (nz != 0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
362 {
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
363 for (octave_idx_type j = 0; j < nc; j++)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
364 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
365 octave_quit ();
5355
cf44c749ba52 [project @ 2005-05-18 11:43:37 by jwe]
jwe
parents: 5322
diff changeset
366
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
367 // FIXME -- is there an easy way to get the max row
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
368 // and column indices so we can set the width appropriately
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
369 // and line up the columns here? Similarly, we should look
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
370 // at all the nonzero values and display them with the same
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
371 // formatting rules that apply to columns of a matrix.
5355
cf44c749ba52 [project @ 2005-05-18 11:43:37 by jwe]
jwe
parents: 5322
diff changeset
372
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
373 for (octave_idx_type i = matrix.cidx(j); i < matrix.cidx(j+1); i++)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
374 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
375 os << "\n";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
376 os << " (" << matrix.ridx(i)+1 <<
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
377 ", " << j+1 << ") -> ";
5355
cf44c749ba52 [project @ 2005-05-18 11:43:37 by jwe]
jwe
parents: 5322
diff changeset
378
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
379 octave_print_internal (os, matrix.data(i), pr_as_read_syntax);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
380 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
381 }
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
382 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
383 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
384
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
385 template <class T>
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
386 bool
6974
9e32bb109980 [project @ 2007-10-08 11:06:47 by jwe]
jwe
parents: 5958
diff changeset
387 octave_base_sparse<T>::save_ascii (std::ostream& os)
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
388 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
389 dim_vector dv = this->dims ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
390
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
391 // Ensure that additional memory is deallocated
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
392 matrix.maybe_compress ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
393
10527
b4d2080b6df7 Replace nzmax by nnz as needed
David Bateman <dbateman@free.fr>
parents: 10521
diff changeset
394 os << "# nnz: " << nnz () << "\n";
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
395 os << "# rows: " << dv (0) << "\n";
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
396 os << "# columns: " << dv (1) << "\n";
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
397
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
398 os << this->matrix;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
399
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
400 return true;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
401 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
402
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
403 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
404 bool
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
405 octave_base_sparse<T>::load_ascii (std::istream& is)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
406 {
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
407 octave_idx_type nz = 0;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
408 octave_idx_type nr = 0;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
409 octave_idx_type nc = 0;
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
410 bool success = true;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
411
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
412 if (extract_keyword (is, "nnz", nz, true) &&
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
413 extract_keyword (is, "rows", nr, true) &&
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
414 extract_keyword (is, "columns", nc, true))
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
415 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
416 T tmp (nr, nc, nz);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
417
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
418 is >> tmp;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
419
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
420 if (!is)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
421 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
422 error ("load: failed to load matrix constant");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
423 success = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
424 }
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
425
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
426 matrix = tmp;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
427 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
428 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
429 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
430 error ("load: failed to extract number of rows and columns");
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
431 success = false;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
432 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
433
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
434 return success;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
435 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
436
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
437 template <class T>
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
438 octave_value
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
439 octave_base_sparse<T>::map (octave_base_value::unary_mapper_t umap) const
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
440 {
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
441 // Try the map on the dense value.
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
442 octave_value retval = this->full_value ().map (umap);
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
443
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
444 // Sparsify the result if possible.
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
445 // FIXME: intentionally skip this step for string mappers. Is this wanted?
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
446 if (umap >= umap_xisalnum && umap <= umap_xtoupper)
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
447 return retval;
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
448
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
449 switch (retval.builtin_type ())
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
450 {
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
451 case btyp_double:
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
452 retval = retval.sparse_matrix_value ();
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
453 break;
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
454 case btyp_complex:
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
455 retval = retval.sparse_complex_matrix_value ();
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
456 break;
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
457 case btyp_bool:
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
458 retval = retval.sparse_bool_matrix_value ();
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
459 break;
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
460 default:
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
461 break;
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
462 }
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
463
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
464 return retval;
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
465 }