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99 lines
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<title>EO: eoDistance.h Source File</title>
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<a class="el" href="dir_000000.html">src</a> / <a class="el" href="dir_000011.html">utils</a></div>
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<h1>eoDistance.h</h1><div class="fragment"><pre class="fragment">00001 <span class="comment">// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-</span>
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00002
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00003 <span class="comment">//-----------------------------------------------------------------------------</span>
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00004 <span class="comment">// eoDistance.h</span>
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00005 <span class="comment">// (c) GeNeura Team, 1998, Marc Schoenauer 2001</span>
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00006 <span class="comment">/* </span>
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00007 <span class="comment"> This library is free software; you can redistribute it and/or</span>
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00008 <span class="comment"> modify it under the terms of the GNU Lesser General Public</span>
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00009 <span class="comment"> License as published by the Free Software Foundation; either</span>
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00010 <span class="comment"> version 2 of the License, or (at your option) any later version.</span>
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00011 <span class="comment"></span>
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00012 <span class="comment"> This library is distributed in the hope that it will be useful,</span>
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00013 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
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00014 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
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00015 <span class="comment"> Lesser General Public License for more details.</span>
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00016 <span class="comment"></span>
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00017 <span class="comment"> You should have received a copy of the GNU Lesser General Public</span>
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00018 <span class="comment"> License along with this library; if not, write to the Free Software</span>
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00019 <span class="comment"> Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
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00020 <span class="comment"></span>
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00021 <span class="comment"> Contact: todos@geneura.ugr.es, http://geneura.ugr.es</span>
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00022 <span class="comment"> Marc.Schoenauer@polytechnique.fr</span>
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00023 <span class="comment"> */</span>
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00024 <span class="comment">//-----------------------------------------------------------------------------</span>
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00025
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00026 <span class="preprocessor">#ifndef _eoDistance_H</span>
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00027 <span class="preprocessor"></span><span class="preprocessor">#define _eoDistance_H</span>
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00028 <span class="preprocessor"></span>
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00029 <span class="preprocessor">#include <eoFunctor.h></span>
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00034 <span class="keyword">template</span>< <span class="keyword">class</span> EOT >
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<a name="l00035"></a><a class="code" href="classeo_distance.html">00035</a> <span class="keyword">class </span><a class="code" href="classeo_distance.html">eoDistance</a> : <span class="keyword">public</span> <a class="code" href="classeo_b_f.html">eoBF</a><const EOT &, const EOT &, double>
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00036 {};
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00037
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00038
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00043 <span class="keyword">template</span>< <span class="keyword">class</span> EOT >
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<a name="l00044"></a><a class="code" href="classeo_quad_distance.html">00044</a> <span class="keyword">class </span><a class="code" href="classeo_quad_distance.html">eoQuadDistance</a> : <span class="keyword">public</span> <a class="code" href="classeo_distance.html">eoDistance</a><EOT>
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00045 {
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00046 <span class="keyword">public</span>:
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<a name="l00047"></a><a class="code" href="classeo_quad_distance.html#a0">00047</a> <span class="keywordtype">double</span> <a class="code" href="classeo_quad_distance.html#a0">operator()</a>(<span class="keyword">const</span> <a class="code" href="struct_dummy.html">EOT</a> & _v1, <span class="keyword">const</span> <a class="code" href="struct_dummy.html">EOT</a> & _v2)
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00048 {
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00049 <span class="keywordtype">double</span> sum=0.0;
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00050 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i=0; i<_v1.size(); i++)
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00051 {
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00052 <span class="keywordtype">double</span> r = static_cast<double> (_v1[i]) - static_cast<double> (_v2[i]);
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00053 sum += r*r;
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00054 }
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00055 <span class="keywordflow">return</span> sqrt(sum);
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00056 }
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00057 };
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00058
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00065 <span class="keyword">template</span>< <span class="keyword">class</span> EOT >
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<a name="l00066"></a><a class="code" href="classeo_hamming_distance.html">00066</a> <span class="keyword">class </span><a class="code" href="classeo_hamming_distance.html">eoHammingDistance</a> : <span class="keyword">public</span> <a class="code" href="classeo_distance.html">eoDistance</a><EOT>
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00067 {
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00068 <span class="keyword">public</span>:
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<a name="l00069"></a><a class="code" href="classeo_hamming_distance.html#a0">00069</a> <span class="keywordtype">double</span> <a class="code" href="classeo_hamming_distance.html#a0">operator()</a>(<span class="keyword">const</span> <a class="code" href="struct_dummy.html">EOT</a> & _v1, <span class="keyword">const</span> <a class="code" href="struct_dummy.html">EOT</a> & _v2)
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00070 {
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00071 <span class="keywordtype">double</span> sum=0.0;
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00072 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i=0; i<_v1.size(); i++)
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00073 {
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00074 <span class="keywordtype">double</span> r = static_cast<double> (_v1[i]) - static_cast<double> (_v2[i]);
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00075 sum += fabs(r);
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00076 }
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00077 <span class="keywordflow">return</span> sum;
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00078 }
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00079 };
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00080
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00081 <span class="comment">/* this distance measures the difference in fitness </span>
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00082 <span class="comment"> * I am not sure it can be of any use, though ... </span>
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00083 <span class="comment"> * except for some testing</span>
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00084 <span class="comment"> */</span>
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00085 <span class="keyword">template</span>< <span class="keyword">class</span> EOT >
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00086 <span class="keyword">class </span>eoFitnessDistance : <span class="keyword">public</span> <a class="code" href="classeo_distance.html">eoDistance</a><EOT>
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00087 {
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00088 <span class="keyword">public</span>:
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00089 <span class="keywordtype">double</span> <a class="code" href="classeo_b_f.html#a1">operator()</a>(<span class="keyword">const</span> <a class="code" href="struct_dummy.html">EOT</a> & _v1, <span class="keyword">const</span> <a class="code" href="struct_dummy.html">EOT</a> & _v2)
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00090 {
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00091 <span class="keywordtype">double</span> d = _v1.<a class="code" href="class_e_o.html#a2">fitness</a>() - _v2.<a class="code" href="class_e_o.html#a2">fitness</a>();
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00092 <span class="keywordflow">return</span> sqrt(d*d);
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00093 }
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00094 };
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00095
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00096
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00097
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00098 <span class="preprocessor">#endif</span>
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</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu Oct 19 05:06:34 2006 for EO by
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.3.9.1 </small></address>
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