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| 26 | <h1>SAXO Documentation</h1> |
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| 32 | <table cellspacing="0"> |
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| 33 | <tr> |
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| 34 | |
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[189] | 35 | <td><a href="./../overview.html" title="Overview of library">Overview</a></td> |
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[138] | 36 | |
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| 37 | |
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| 38 | |
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| 39 | <td >Directory</td> |
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[189] | 43 | <td><a href="./../idldoc-categories.html" title="Browse library by category">Categories</a></td> |
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[138] | 44 | |
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[189] | 47 | <td><a href="./../idldoc-index.html" title="Index of files, routines, and parameters">Index</a></td> |
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[138] | 48 | |
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[189] | 51 | <td><a href="./../search-page.html" title="Search library">Search</a></td> |
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[138] | 52 | |
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| 54 | <td id="selected">File</td> |
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[189] | 57 | <td><a href="../../../Matrix//union.pro" title="Source code of a file">Source</a></td> |
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[138] | 58 | |
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[189] | 61 | <td><a href="./../idldoc-help.html" title="Help on IDLdoc">Help</a></td> |
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[138] | 62 | |
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| 63 | |
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| 64 | <td >Etc</td> |
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| 66 | <td id="flexible">Developer documentation</td> |
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[189] | 74 | <a href="make_selection.html"><<prev file</a> | <a href="zero_one.html">next file >></a> <a href="union.html" target="_TOP">view single page</a> | <a href="./../index.html" target="_TOP">view frames</a> summary: fields | routine details: <a href="#routine_details">routine</a> |
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[138] | 75 | |
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| 76 | </div> |
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| 77 | |
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| 78 | |
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| 79 | <div id="container"> |
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| 80 | |
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[189] | 81 | <h1 class="directory"><a href="directory-overview.html">Matrix/</a></h1> |
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[138] | 82 | <h2 class="pro_file">union.pro</h2> |
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| 83 | |
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| 84 | <div id="file_attr"> |
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| 85 | <dl> |
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| 86 | </dl> |
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| 87 | </div> |
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| 88 | |
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[234] | 89 | <div id="file_comments"> |
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[402] | 90 | find the union between 2 matrices of whole numbers |
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| 91 | |
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| 92 | see also <a href="..//Matrix/different.html">different</a> and <a href="..//Matrix/inter.html">inter</a>. |
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[138] | 93 | </div> |
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| 94 | |
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| 102 | |
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| 103 | <div id="routine_details"> |
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| 104 | |
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| 105 | |
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| 106 | <div class="routine_details" id="_union"> |
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| 107 | |
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[234] | 108 | <h2><a class="top" href="#container">top</a>union <span class="categories"> |
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[157] | 109 | Calculation |
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[138] | 110 | </span></h2> |
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| 111 | |
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| 112 | <p class="header"> |
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| 113 | <span class="result">result = </span>union(<span class="result"><a href="#_union_param_a">a</a>, <a href="#_union_param_b">b</a></span>)</p> |
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| 114 | |
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| 115 | <div class="comments"> |
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| 116 | </div> |
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| 117 | |
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[234] | 118 | <h3>Return value</h3><div class="preformat"> |
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[402] | 119 | an array containing the set of values in a and b. |
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[138] | 120 | </div> |
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| 121 | |
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| 122 | |
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| 123 | <h3>Parameters</h3> |
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| 124 | |
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| 125 | |
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| 126 | <h4 id="_union_param_a">a |
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| 127 | <span class="attr">in</span> |
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| 128 | |
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| 129 | |
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| 130 | <span class="attr">required</span> |
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| 131 | |
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| 132 | |
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| 133 | |
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| 134 | |
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| 135 | </h4> |
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| 136 | |
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[234] | 137 | <div class="comments"> |
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| 138 | arrays of positive integers, which need |
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[402] | 139 | not be sorted. Duplicate elements are ignored, as they have no |
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| 140 | effect on the result |
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[138] | 141 | </div> |
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| 142 | |
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| 143 | <h4 id="_union_param_b">b |
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| 144 | <span class="attr">in</span> |
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| 145 | |
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| 146 | |
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| 147 | <span class="attr">required</span> |
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| 148 | |
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| 149 | |
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| 150 | |
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| 151 | |
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| 152 | </h4> |
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| 153 | |
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[242] | 154 | <div class="comments"> |
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| 155 | see a |
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[138] | 156 | </div> |
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| 157 | |
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[234] | 163 | <h3>Examples</h3><div class="preformat"> |
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[402] | 164 | |
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| 165 | IDL> a = [2,4,6,8] |
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| 166 | IDL> b = [6,1,3,2] |
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| 167 | IDL> res=union(a,b) |
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| 168 | IDL> print, res |
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| 169 | 1 2 3 4 5 6 |
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| 170 | 8 |
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| 171 | this is the list ao all elements in either sets. |
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[138] | 172 | </div> |
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| 173 | <h3>Version history</h3> |
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| 174 | |
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[234] | 175 | <h4>Version</h4><div class="preformat"> |
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[402] | 176 | $Id: union.pro 378 2008-08-12 12:35:46Z pinsard $ |
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[138] | 177 | </div> |
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[234] | 178 | <h4>History</h4><div class="preformat"> |
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| 179 | <a href="http://www.dfanning.com/tips/set_operations.html"/> |
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[138] | 180 | </div> |
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| 181 | |
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| 182 | |
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| 183 | <h3>Known issues</h3> |
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| 184 | |
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| 185 | |
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| 186 | |
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[402] | 187 | <h4>Restrictions</h4><div class="preformat"> |
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[138] | 188 | These functions will not be efficient on sparse sets with wide |
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[242] | 189 | ranges, as they trade memory for efficiency. |
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[338] | 190 | The <a href="/Applications/itt/idl64/help/online_help/HISTOGRAM.html">HISTOGRAM</a> function |
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[138] | 191 | is used, which creates arrays of size equal to the range of the |
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| 192 | resulting set. |
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| 193 | </div> |
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[163] | 203 | <h3>Statistics</h3> |
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| 204 | <table class="statistics"> |
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| 205 | <tr><td>McCabe cyclic</td><td> 3</td></tr> |
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| 206 | <tr><td>McCabe essential</td><td> 1</td></tr> |
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| 207 | <tr><td>McCabe modular design</td><td> 1</td></tr> |
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| 208 | </table> |
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[138] | 209 | |
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| 210 | |
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| 211 | </div> |
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| 212 | |
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| 213 | </div> |
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| 217 | <div id="tagline">Produced by IDLdoc 2.0.</div> |
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| 219 | </div> |
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| 220 | |
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| 221 | </body> |
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[249] | 222 | </html> |
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