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trunk/paradiseo-eo/doc/html/t-eo_pareto_fitness_8cpp-source.html
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<title>EO: t-eoParetoFitness.cpp Source File</title>
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<h1>t-eoParetoFitness.cpp</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">// t-eoParetoFitness.cpp</span>
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00005 <span class="comment">// (c) Maarten Keijzer</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: mak@dhi.dk</span>
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00022 <span class="comment"></span>
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00023 <span class="comment">30/01/02 - MS - Added the eoVariableParetoTraits - and the compare Fn</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">#include <cassert></span>
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00028 <span class="preprocessor">#include <iostream></span>
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00029
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00030 <span class="preprocessor">#include "eoParetoFitness.h"</span>
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00031
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00032 <span class="keyword">using</span> <span class="keyword">namespace </span>std;
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00033
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<a name="l00036"></a><a class="code" href="class_minimizing_traits.html">00036</a> <span class="keyword">class </span><a class="code" href="class_minimizing_traits.html">MinimizingTraits</a> : <span class="keyword">public</span> <a class="code" href="classeo_pareto_fitness_traits.html">eoParetoFitnessTraits</a>
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00037 {
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00038 <span class="keyword">public</span> :
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00039
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00040 <span class="keyword">static</span> <span class="keywordtype">bool</span> maximizing(<span class="keywordtype">int</span>) { <span class="keywordflow">return</span> <span class="keyword">false</span>; }
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00041 };
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00042
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00043 <span class="keyword">template</span> <<span class="keyword">class</span> F>
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00044 <span class="keywordtype">void</span> compare(F & _eo1, F & _eo2)
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00045 {
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00046 <span class="keywordflow">if</span> (_eo1.dominates(_eo2))
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00047 std::cout << _eo1 << <span class="stringliteral">" dominates "</span> << _eo2 << std::endl;
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00048 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (_eo2.dominates(_eo1))
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00049 std::cout << _eo2 << <span class="stringliteral">" dominates "</span> << _eo1 << std::endl;
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00050 <span class="keywordflow">else</span>
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00051 std::cout << <span class="stringliteral">"None of "</span> << _eo1 << <span class="stringliteral">" and "</span> << _eo2 << <span class="stringliteral">"dominates the other"</span> << std::endl;
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00052 <span class="keywordflow">return</span>;
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00053 }
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00054
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00055 <span class="keywordtype">int</span> main()
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00056 {
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00057 <span class="keyword">typedef</span> <a class="code" href="classeo_pareto_fitness.html">eoParetoFitness<></a> MaxFitness;
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00058 <span class="keyword">typedef</span> <a class="code" href="classeo_pareto_fitness.html">eoParetoFitness<MinimizingTraits></a> MinFitness;
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00059
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00060 <span class="keyword">typedef</span> <a class="code" href="classeo_pareto_fitness.html">eoParetoFitness<eoVariableParetoTraits></a> VarFitness;
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00061
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00062 <span class="keywordflow">try</span>{
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00063
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00064 MaxFitness f0;
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00065 f0[0] = 0.0;
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00066 f0[1] = 1.0;
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00067
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00068 MaxFitness f1;
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00069 f1[0] = 1.0;
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00070 f1[1] = 0.0;
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00071
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00072 MaxFitness f2;
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00073 f2[0] = 0.0;
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00074 f2[1] = 0.5;
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00075
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00076 <span class="comment">// now f0 should dominate f2;</span>
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00077
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00078 <span class="keywordflow">if</span> (!f0.dominates(f2))
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00079 {
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00080 std::cout << f2 << <span class="stringliteral">" not dominated by "</span> << f0;
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00081 <span class="keywordflow">throw</span>;
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00082 }
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00083
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00084 <span class="comment">// f0 and f1 should not dominate each other</span>
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00085
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00086 <span class="keywordflow">if</span> (f0.dominates(f1) || f1.dominates(f0))
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00087 {
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00088 std::cout << f0 << <span class="stringliteral">" and "</span> << f1 << <span class="stringliteral">" dominate"</span>;
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00089 <span class="keywordflow">throw</span>;
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00090 }
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00091
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00092 <span class="keywordflow">if</span> (! (f0 == f0))
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00093 {
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00094 std::cout << <span class="stringliteral">"f0 == f0 failed"</span> << std::endl;
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00095 <span class="keywordflow">throw</span>;
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00096 }
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00097
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00098 <span class="comment">// test ctors and such</span>
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00099 MaxFitness f3 = f0;
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00100 f3[0] += 1e-9;
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00101
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00102 <span class="comment">// test tolerance</span>
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00103 assert(f3 == f0);
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00104
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00105 MinFitness m0;
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00106 MinFitness m1;
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00107 MinFitness m2;
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00108 MinFitness m3;
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00109
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00110 m0[0] = 0.0;
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00111 m0[1] = 1.0;
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00112
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00113 m1[0] = 1.0;
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00114 m1[1] = 0.0;
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00115
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00116 m2[0] = 0.0;
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00117 m2[1] = 0.5;
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00118
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00119 m3[0] = 0.5;
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00120 m3[1] = 0.5;
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00121
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00122 <span class="comment">//m2 should dominate m0</span>
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00123 assert(m2.dominates(m0));
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00124
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00125 assert(!m1.dominates(m0));
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00126 assert(!m0.dominates(m1));
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00127 assert(!m0.dominates(m2)); <span class="comment">// (m2 < m0));</span>
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00128 assert(m2.dominates(m3)); <span class="comment">//m3 < m2);</span>
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00129 assert(!m3.dominates(m2)); <span class="comment">// (m2 < m3));</span>
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00130 assert(m2.dominates(m3)); <span class="comment">//m2 > m3);</span>
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00131
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00132
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00134 <span class="comment">// now the run-time set-able number of objectives</span>
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00136 <span class="comment"></span>
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00137 std::cout << <span class="stringliteral">"On y va"</span> << std::endl;
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00138
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00139
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00140 <span class="comment">// setup fitness WARNING do not try to allocate any EO before that (runtime error)</span>
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00141 vector<bool> b(2, <span class="keyword">true</span>);
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00142 b[0]=<span class="keyword">true</span>;
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00143 b[1]=<span class="keyword">false</span>;
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00144 VarFitness::setUp(2, b);
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00145 std::cout << <span class="stringliteral">"\nMAXimizing on Obj 0 and MINimizing on Obj 1\n"</span>;
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00146
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00147 VarFitness mv0;
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00148 VarFitness mv1;
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00149 VarFitness mv2;
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00150 VarFitness mv3;
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00151
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00152 mv0[0] = 0.0;
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00153 mv0[1] = 1.0;
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00154
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00155 mv1[0] = 1.0;
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00156 mv1[1] = 0.0;
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00157
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00158 mv2[0] = 0.0;
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00159 mv2[1] = 0.5;
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00160
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00161 mv3[0] = 0.5;
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00162 mv3[1] = 0.5;
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00163
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00164 compare <VarFitness>(mv0,mv1);
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00165 compare <VarFitness>(mv0,mv2);
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00166 compare <VarFitness>(mv0,mv3);
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00167 compare <VarFitness>(mv1,mv2);
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00168 compare <VarFitness>(mv1,mv3);
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00169 compare <VarFitness>(mv2,mv3);
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00170
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00171 std::cout << <span class="stringliteral">"\nChanging now the min <-> max\n"</span>;
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00172 b[0]=<span class="keyword">false</span>;
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00173 b[1]=<span class="keyword">true</span>;
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00174 VarFitness::setUp(2, b);
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00175 std::cout << <span class="stringliteral">"\nMINimizing on Obj 0 and MAXimizing on Obj 1\n"</span>;
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00176 compare <VarFitness>(mv0,mv1);
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00177 compare <VarFitness>(mv0,mv2);
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00178 compare <VarFitness>(mv0,mv3);
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00179 compare <VarFitness>(mv1,mv2);
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00180 compare <VarFitness>(mv1,mv3);
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00181 compare <VarFitness>(mv2,mv3);
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00182
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00183 std::cout << <span class="stringliteral">"\nTesting WARNING\n"</span>;
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00184 b.resize(3);
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00185 b[0]=<span class="keyword">false</span>;
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00186 b[1]=<span class="keyword">true</span>;
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00187 b[2]=<span class="keyword">true</span>;
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00188 VarFitness::setUp(3, b);
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00189
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00190 }
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00191 <span class="keywordflow">catch</span>(std::exception& e)
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00192 {
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00193 std::cout << e.what() << std::endl;
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00194 }
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00195
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00196 }
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</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu Oct 19 05:06:43 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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