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trunk/paradiseo-eo/doc/html/eo_sequential_select_8h-source.html
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<title>EO: eoSequentialSelect.h Source File</title>
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<a class="qindex" href="main.html">Main Page</a> | <a class="qindex" href="modules.html">Modules</a> | <a class="qindex" href="namespaces.html">Namespace List</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Class List</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="namespacemembers.html">Namespace Members</a> | <a class="qindex" href="functions.html">Class Members</a> | <a class="qindex" href="pages.html">Related Pages</a> | <span class="search"><u>S</u>earch for <input class="search" type="text" name="query" value="" size="20" accesskey="s"/></span></form></div>
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<h1>eoSequentialSelect.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">// eoSequential.h</span>
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00005 <span class="comment">// (c) GeNeura Team, 1998 - Maarten Keijzer 2000, Marc Schoenauer, 2002</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"> mak@dhi.dk</span>
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00024 <span class="comment"> */</span>
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00025 <span class="comment">//-----------------------------------------------------------------------------</span>
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00026
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00027 <span class="preprocessor">#ifndef eoSequential_h</span>
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00028 <span class="preprocessor"></span><span class="preprocessor">#define eoSequential_h</span>
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00029 <span class="preprocessor"></span>
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00030 <span class="preprocessor">#include <limits></span>
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00031
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00032 <span class="preprocessor">#include "utils/eoData.h"</span>
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00033 <span class="preprocessor">#include "utils/eoRNG.h"</span>
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00034 <span class="preprocessor">#include "eoSelectOne.h"</span>
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00035
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<a name="l00052"></a><a class="code" href="classeo_sequential_select.html">00052</a> <span class="keyword">template</span> <<span class="keyword">class</span> EOT> <span class="keyword">class </span><a class="code" href="classeo_sequential_select.html">eoSequentialSelect</a>: <span class="keyword">public</span> <a class="code" href="classeo_select_one.html">eoSelectOne</a><EOT>
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00053 {
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00054 <span class="keyword">public</span>:
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<a name="l00058"></a><a class="code" href="classeo_sequential_select.html#a0">00058</a> <a class="code" href="classeo_sequential_select.html#a0">eoSequentialSelect</a>(<span class="keywordtype">bool</span> _ordered = <span class="keyword">true</span>)
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00059 : ordered(_ordered), current(std::numeric_limits<unsigned>::max()) {}
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00060
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<a name="l00061"></a><a class="code" href="classeo_sequential_select.html#a1">00061</a> <span class="keywordtype">void</span> <a class="code" href="classeo_sequential_select.html#a1">setup</a>(<span class="keyword">const</span> <a class="code" href="classeo_pop.html">eoPop<EOT></a>& _pop)
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00062 {
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00063 eoPters.resize(_pop.size());
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00064 <span class="keywordflow">if</span> (ordered) <span class="comment">// probably we could have a marker to avoid re-sorting</span>
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00065 _pop.<a class="code" href="classeo_pop.html#a5">sort</a>(eoPters);
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00066 <span class="keywordflow">else</span>
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00067 _pop.<a class="code" href="classeo_pop.html#a7">shuffle</a>(eoPters);
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00068 current=0;
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00069 }
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00070
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<a name="l00071"></a><a class="code" href="classeo_sequential_select.html#a2">00071</a> <span class="keyword">virtual</span> <span class="keyword">const</span> <a class="code" href="struct_dummy.html">EOT</a>& <a class="code" href="classeo_sequential_select.html#a2">operator()</a>(<span class="keyword">const</span> <a class="code" href="classeo_pop.html">eoPop<EOT></a>& _pop)
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00072 {
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00073 <span class="keywordflow">if</span> (current >= _pop.size())
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00074 <a class="code" href="classeo_sequential_select.html#a1">setup</a>(_pop);
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00075
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00076 <span class="keywordtype">unsigned</span> eoN = current;
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00077 current++;
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00078 <span class="keywordflow">return</span> *eoPters[eoN] ;
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00079 }
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00080 <span class="keyword">private</span>:
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00081 <span class="keywordtype">bool</span> ordered;
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00082 <span class="keywordtype">unsigned</span> current;
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00083 std::vector<const EOT*> eoPters;
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00084 };
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00085
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00086
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00087
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<a name="l00097"></a><a class="code" href="classeo_elite_sequential_select.html">00097</a> <span class="keyword">template</span> <<span class="keyword">class</span> EOT> <span class="keyword">class </span><a class="code" href="classeo_elite_sequential_select.html">eoEliteSequentialSelect</a>: <span class="keyword">public</span> <a class="code" href="classeo_select_one.html">eoSelectOne</a><EOT>
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00098 {
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00099 <span class="keyword">public</span>:
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00100
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<a name="l00104"></a><a class="code" href="classeo_elite_sequential_select.html#a0">00104</a> <a class="code" href="classeo_elite_sequential_select.html#a0">eoEliteSequentialSelect</a>(): current(std::numeric_limits<unsigned>::max()) {}
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00105
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<a name="l00106"></a><a class="code" href="classeo_elite_sequential_select.html#a1">00106</a> <span class="keywordtype">void</span> <a class="code" href="classeo_elite_sequential_select.html#a1">setup</a>(<span class="keyword">const</span> <a class="code" href="classeo_pop.html">eoPop<EOT></a>& _pop)
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00107 {
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00108 eoPters.resize(_pop.size());
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00109 _pop.<a class="code" href="classeo_pop.html#a7">shuffle</a>(eoPters);
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00110 <span class="comment">// now get the best</span>
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00111 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ibest = 0;
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00112 <span class="keyword">const</span> <a class="code" href="struct_dummy.html">EOT</a> * best = eoPters[0];
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00113 <span class="keywordflow">if</span> (_pop.size() == 1)
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00114 <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">"Trying eoEliteSequentialSelect with only one individual!"</span>);
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00115 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i=1; i<_pop.size(); i++)
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00116 <span class="keywordflow">if</span> (*eoPters[i]>*best)
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00117 {
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00118 ibest = i;
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00119 best = eoPters[ibest];
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00120 }
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00121 <span class="comment">// and put it upfront</span>
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00122 <span class="keyword">const</span> <a class="code" href="struct_dummy.html">EOT</a> *ptmp = eoPters[0];
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00123 eoPters[0]=best;
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00124 eoPters[ibest] = ptmp;
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00125 <span class="comment">// exit after setting current</span>
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00126 current=0;
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00127 }
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00128
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<a name="l00129"></a><a class="code" href="classeo_elite_sequential_select.html#a2">00129</a> <span class="keyword">virtual</span> <span class="keyword">const</span> <a class="code" href="struct_dummy.html">EOT</a>& <a class="code" href="classeo_elite_sequential_select.html#a2">operator()</a>(<span class="keyword">const</span> <a class="code" href="classeo_pop.html">eoPop<EOT></a>& _pop)
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00130 {
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00131 <span class="keywordflow">if</span> (current >= _pop.size())
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00132 <a class="code" href="classeo_elite_sequential_select.html#a1">setup</a>(_pop);
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00133
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00134 <span class="keywordtype">unsigned</span> eoN = current;
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00135 current++;
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00136 <span class="keywordflow">return</span> *eoPters[eoN] ;
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00137 }
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00138 <span class="keyword">private</span>:
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00139 <span class="keywordtype">unsigned</span> current;
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00140 std::vector<const EOT*> eoPters;
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00141 };
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00142
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00143
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00144 <span class="preprocessor">#endif</span>
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</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu Oct 19 05:06:38 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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