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<h1>eoMerge.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>
00002
00003 <span class="comment">//-----------------------------------------------------------------------------</span>
00004 <span class="comment">// eoMerge.h</span>
00005 <span class="comment">// Base class for elitist-merging classes</span>
00006 <span class="comment">// (c) GeNeura Team, 1998</span>
00007 <span class="comment">/* </span>
00008 <span class="comment"> This library is free software; you can redistribute it and/or</span>
00009 <span class="comment"> modify it under the terms of the GNU Lesser General Public</span>
00010 <span class="comment"> License as published by the Free Software Foundation; either</span>
00011 <span class="comment"> version 2 of the License, or (at your option) any later version.</span>
00012 <span class="comment"></span>
00013 <span class="comment"> This library is distributed in the hope that it will be useful,</span>
00014 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
00015 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
00016 <span class="comment"> Lesser General Public License for more details.</span>
00017 <span class="comment"></span>
00018 <span class="comment"> You should have received a copy of the GNU Lesser General Public</span>
00019 <span class="comment"> License along with this library; if not, write to the Free Software</span>
00020 <span class="comment"> Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
00021 <span class="comment"></span>
00022 <span class="comment"> Contact: todos@geneura.ugr.es, http://geneura.ugr.es</span>
00023 <span class="comment"> */</span>
00024 <span class="comment">//-----------------------------------------------------------------------------</span>
00025
00026 <span class="preprocessor">#ifndef eoMerge_h</span>
00027 <span class="preprocessor"></span><span class="preprocessor">#define eoMerge_h</span>
00028 <span class="preprocessor"></span>
00029 <span class="comment">//-----------------------------------------------------------------------------</span>
00030
00031 <span class="preprocessor">#include &lt;stdexcept&gt;</span>
00032
00033 <span class="comment">// EO includes</span>
00034 <span class="preprocessor">#include &lt;eoPop.h&gt;</span> <span class="comment">// eoPop</span>
00035 <span class="preprocessor">#include &lt;eoFunctor.h&gt;</span> <span class="comment">// eoMerge</span>
00036
<a name="l00048"></a><a class="code" href="classeo_merge.html">00048</a> <span class="keyword">template</span>&lt;<span class="keyword">class</span> Chrom&gt; <span class="keyword">class </span><a class="code" href="classeo_merge.html">eoMerge</a>: <span class="keyword">public</span> <a class="code" href="classeo_b_f.html">eoBF</a>&lt;const eoPop&lt;Chrom&gt;&amp;, eoPop&lt;Chrom&gt;&amp;, void&gt;
00049 {};
00050
<a name="l00055"></a><a class="code" href="classeo_elitism.html">00055</a> <span class="keyword">template</span> &lt;<span class="keyword">class</span> EOT&gt; <span class="keyword">class </span><a class="code" href="classeo_elitism.html">eoElitism</a> : <span class="keyword">public</span> <a class="code" href="classeo_merge.html">eoMerge</a>&lt;EOT&gt;
00056 {
00057 <span class="keyword">public</span> :
00058 <a class="code" href="classeo_elitism.html">eoElitism</a>(<span class="keywordtype">double</span> _rate, <span class="keywordtype">bool</span> _interpret_as_rate = <span class="keyword">true</span>):
00059 rate(0), combien(0)
00060 {
00061 <span class="keywordflow">if</span> (_interpret_as_rate)
00062 {
00063 <span class="keywordflow">if</span> ( (_rate&lt;0) || (_rate&gt;1) )
00064 <span class="keywordflow">throw</span> std::logic_error(<span class="stringliteral">"eoElitism: rate shoud be in [0,1]"</span>);
00065 rate = _rate;
00066 }
00067 <span class="keywordflow">else</span>
00068 {
00069 <span class="keywordflow">if</span> (_rate&lt;0)
00070 <span class="keywordflow">throw</span> std::logic_error(<span class="stringliteral">"Negative number of offspring in eoElitism!"</span>);
00071 combien = (<span class="keywordtype">unsigned</span> int)_rate;
00072 <span class="keywordflow">if</span> (combien != _rate)
00073 std::cout &lt;&lt; <span class="stringliteral">"Warning: Number of guys to merge in eoElitism was rounded"</span>;
00074 }
00075 }
00076
<a name="l00077"></a><a class="code" href="classeo_elitism.html#a1">00077</a> <span class="keywordtype">void</span> <a class="code" href="classeo_elitism.html#a1">operator()</a>(<span class="keyword">const</span> <a class="code" href="classeo_pop.html">eoPop&lt;EOT&gt;</a>&amp; _pop, <a class="code" href="classeo_pop.html">eoPop&lt;EOT&gt;</a>&amp; _offspring)
00078 {
00079 <span class="keywordflow">if</span> ((combien == 0) &amp;&amp; (rate == 0.0))
00080 <span class="keywordflow">return</span>;
00081 <span class="keywordtype">unsigned</span> combienLocal;
00082 <span class="keywordflow">if</span> (combien == 0) <span class="comment">// rate is specified</span>
00083 combienLocal = (<span class="keywordtype">unsigned</span> int) (rate * _pop.size());
00084 <span class="keywordflow">else</span>
00085 combienLocal = combien;
00086
00087 <span class="keywordflow">if</span> (combienLocal &gt; _pop.size())
00088 <span class="keywordflow">throw</span> std::logic_error(<span class="stringliteral">"Elite larger than population"</span>);
00089
00090 std::vector&lt;const EOT*&gt; result;
00091 _pop.<a class="code" href="classeo_pop.html#a13">nth_element</a>(combienLocal, result);
00092
00093 <span class="keywordflow">for</span> (size_t i = 0; i &lt; result.size(); ++i)
00094 {
00095 _offspring.push_back(*result[i]);
00096 }
00097 }
00098
00099 <span class="keyword">private</span> :
00100 <span class="keywordtype">double</span> rate;
00101 <span class="keywordtype">unsigned</span> combien;
00102 };
00103
<a name="l00107"></a><a class="code" href="classeo_no_elitism.html">00107</a> <span class="keyword">template</span> &lt;<span class="keyword">class</span> EOT&gt; <span class="keyword">class </span><a class="code" href="classeo_no_elitism.html">eoNoElitism</a> : <span class="keyword">public</span> <a class="code" href="classeo_elitism.html">eoElitism</a>&lt;EOT&gt;
00108 {
00109 <span class="keyword">public</span> :
00110 <a class="code" href="classeo_no_elitism.html">eoNoElitism</a>() : <a class="code" href="classeo_elitism.html">eoElitism&lt;EOT&gt;</a>(0) {}
00111 };
00112
<a name="l00116"></a><a class="code" href="classeo_plus.html">00116</a> <span class="keyword">template</span> &lt;<span class="keyword">class</span> EOT&gt; <span class="keyword">class </span><a class="code" href="classeo_plus.html">eoPlus</a> : <span class="keyword">public</span> <a class="code" href="classeo_merge.html">eoMerge</a>&lt;EOT&gt;
00117 {
00118 <span class="keyword">public</span> :
<a name="l00119"></a><a class="code" href="classeo_plus.html#a0">00119</a> <span class="keywordtype">void</span> <a class="code" href="classeo_plus.html#a0">operator()</a>(<span class="keyword">const</span> <a class="code" href="classeo_pop.html">eoPop&lt;EOT&gt;</a>&amp; _pop, <a class="code" href="classeo_pop.html">eoPop&lt;EOT&gt;</a>&amp; _offspring)
00120 {
00121 _offspring.reserve(_offspring.size() + _pop.size());
00122
00123 <span class="keywordflow">for</span> (size_t i = 0; i &lt; _pop.size(); ++i)
00124 {
00125 _offspring.push_back(_pop[i]);
00126 }
00127 }
00128
00129 <span class="keyword">private</span> :
00130 };
00131
00132 <span class="comment">//-----------------------------------------------------------------------------</span>
00133
00134 <span class="preprocessor">#endif </span>
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