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git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@40 331e1502-861f-0410-8da2-ba01fb791d7f
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<title>EO: gprop.cpp Source File</title>
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<a class="el" href="dir_000020.html">app</a> / <a class="el" href="dir_000023.html">gprop</a></div>
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<h1>gprop.cpp</h1><div class="fragment"><pre class="fragment">00001 <span class="comment">//-----------------------------------------------------------------------------</span>
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00002 <span class="comment">// gprop</span>
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00003 <span class="comment">//-----------------------------------------------------------------------------</span>
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00004 <span class="keyword">using</span> <span class="keyword">namespace </span>std;
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00005
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00006 <span class="preprocessor">#include <stdlib.h></span> <span class="comment">// EXIT_SUCCESS EXIT_FAILURE</span>
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00007 <span class="preprocessor">#include <stdexcept></span> <span class="comment">// exception </span>
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00008 <span class="preprocessor">#include <iostream></span> <span class="comment">// cerr cout</span>
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00009 <span class="preprocessor">#include <fstream></span> <span class="comment">// ifstream</span>
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00010 <span class="preprocessor">#include <string></span> <span class="comment">// string</span>
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00011 <span class="preprocessor">#include <eo></span> <span class="comment">// all usefull eo stuff</span>
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00012 <span class="preprocessor">#include "gprop.h"</span> <span class="comment">// Chrom eoChromInit eoChromMutation eoChromXover eoChromEvaluator</span>
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00013
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00014 <span class="comment">//-----------------------------------------------------------------------------</span>
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00015 <span class="comment">// global variables</span>
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00016 <span class="comment">//-----------------------------------------------------------------------------</span>
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00017
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00018 <span class="keywordtype">unsigned</span> in, out, hidden;
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00019 mlp::set train, validate, test;
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00020
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00021 <span class="comment">//-----------------------------------------------------------------------------</span>
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00022 <span class="comment">// parameters</span>
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00023 <span class="comment">//-----------------------------------------------------------------------------</span>
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00024
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00025 <a class="code" href="classeo_value_param.html">eoValueParam<unsigned></a> pop_size(10, <span class="stringliteral">"pop_size"</span>, <span class="stringliteral">"population size"</span>, <span class="charliteral">'p'</span>);
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00026 <a class="code" href="classeo_value_param.html">eoValueParam<unsigned></a> generations(10, <span class="stringliteral">"generations"</span>, <span class="stringliteral">"number of generation"</span>, <span class="charliteral">'g'</span>);
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00027 <a class="code" href="classeo_value_param.html">eoValueParam<double></a> mut_rate(0.25, <span class="stringliteral">"mut_rate"</span>, <span class="stringliteral">"mutation rate"</span>, <span class="charliteral">'m'</span>);
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00028 <a class="code" href="classeo_value_param.html">eoValueParam<double></a> xover_rate(0.25, <span class="stringliteral">"xover_rate"</span>, <span class="stringliteral">"default crossover rate"</span>, <span class="charliteral">'x'</span>);
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00029 <a class="code" href="classeo_value_param.html">eoValueParam<string></a> file(<span class="stringliteral">""</span>, <span class="stringliteral">"file"</span>, <span class="stringliteral">"common start of patterns filenames *.trn *.val and *.tst"</span>, <span class="charliteral">'f'</span>);
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00030 <a class="code" href="classeo_value_param.html">eoValueParam<unsigned></a> hiddenp(0, <span class="stringliteral">"hidden"</span>, <span class="stringliteral">"number of neurons in hidden layer"</span>, <span class="charliteral">'d'</span>);
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00031
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00032 <span class="comment">//-----------------------------------------------------------------------------</span>
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00033 <span class="comment">// auxiliar functions</span>
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00034 <span class="comment">//-----------------------------------------------------------------------------</span>
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00035
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00036 <span class="keywordtype">void</span> arg(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span>** argv);
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00037 <span class="keywordtype">void</span> load_file(mlp::set& s, <span class="keyword">const</span> string& s);
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00038 <span class="keywordtype">void</span> ga();
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00039
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00040 <span class="comment">//-----------------------------------------------------------------------------</span>
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00041 <span class="comment">// main</span>
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00042 <span class="comment">//-----------------------------------------------------------------------------</span>
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00043
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00044 <span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span>** argv)
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00045 {
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00046 <span class="keywordflow">try</span>
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00047 {
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00048 arg(argc, argv);
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00049 ga();
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00050 }
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00051 <span class="keywordflow">catch</span> (exception& e)
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00052 {
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00053 cerr << argv[0] << <span class="stringliteral">": "</span> << e.what() << endl;
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00054 exit(EXIT_FAILURE);
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00055 }
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00056
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00057 <span class="keywordflow">return</span> 0;
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00058 }
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00059
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00060 <span class="comment">//-----------------------------------------------------------------------------</span>
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00061 <span class="comment">// implementation</span>
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00062 <span class="comment">//-----------------------------------------------------------------------------</span>
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00063
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00064 <span class="keywordtype">void</span> arg(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span>** argv)
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00065 {
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00066 eoParser parser(argc, argv);
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00067
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00068 parser.processParam(pop_size, <span class="stringliteral">"genetic operators"</span>);
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00069 parser.processParam(generations, <span class="stringliteral">"genetic operators"</span>);
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00070 parser.processParam(mut_rate, <span class="stringliteral">"genetic operators"</span>);
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00071 parser.processParam(xover_rate, <span class="stringliteral">"genetic operators"</span>);
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00072 parser.processParam(file, <span class="stringliteral">"files"</span>);
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00073 parser.processParam(hiddenp, <span class="stringliteral">"genetic operators"</span>);
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00074
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00075 <span class="keywordflow">if</span> (parser.userNeedsHelp())
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00076 {
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00077 parser.printHelp(cout);
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00078 exit(EXIT_SUCCESS);
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00079 }
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00080
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00081 load_file(train, <span class="stringliteral">"trn"</span>);
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00082 load_file(validate, <span class="stringliteral">"val"</span>);
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00083 load_file(test, <span class="stringliteral">"tst"</span>);
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00084
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00085 phenotype::trn_max = train.size();
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00086 phenotype::val_max = validate.size();
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00087 phenotype::tst_max = test.size();
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00088
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00089 in = train.front().input.size();
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00090 out = train.front().output.size();
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00091 gprop_use_datasets(&train, &validate, &test);
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00092 hidden = hiddenp.<a class="code" href="classeo_value_param.html#a2">value</a>();
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00093 }
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00094
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00095 <span class="comment">//-----------------------------------------------------------------------------</span>
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00096
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00097 <span class="keywordtype">void</span> load_file(mlp::set& set, <span class="keyword">const</span> string& ext)
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00098 {
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00099 string filename = file.<a class="code" href="classeo_value_param.html#a2">value</a>(); filename += <span class="stringliteral">"."</span> + ext;
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00100
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00101 ifstream ifs(filename.c_str());
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00102 <span class="keywordflow">if</span> (!ifs)
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00103 {
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00104 cerr << <span class="stringliteral">"can't open file \""</span> << filename << <span class="stringliteral">"\""</span> << endl;
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00105 exit(EXIT_FAILURE);
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00106 }
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00107
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00108 ifs >> set;
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00109
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00110 <span class="keywordflow">if</span> (set.size() == 0)
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00111 {
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00112 cerr << filename << <span class="stringliteral">" data file is empty!"</span>;
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00113 exit(EXIT_FAILURE);
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00114 }
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00115 }
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00116
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00117 <span class="comment">//-----------------------------------------------------------------------------</span>
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00118
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00119 <span class="keywordtype">void</span> ga()
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00120 {
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00121 <span class="comment">// create population</span>
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00122 eoInitChrom init;
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00123 <a class="code" href="classeo_pop.html">eoPop<Chrom></a> pop(pop_size.<a class="code" href="classeo_value_param.html#a2">value</a>(), init);
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00124
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00125 <span class="comment">// evaluate population</span>
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00126 <a class="code" href="structeo_eval_func_ptr.html">eoEvalFuncPtr<Chrom></a> evaluator(eoChromEvaluator);
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00127 apply<Chrom>(evaluator, pop);
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00128
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00129 <span class="comment">// selector</span>
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00130 <a class="code" href="classeo_stoch_tournament_select.html">eoStochTournamentSelect<Chrom></a> select;
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00131
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00132 <span class="comment">// genetic operators</span>
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00133 eoChromMutation mutation;
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00134 eoChromXover xover;
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00135
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00136 <span class="comment">// stop condition</span>
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00137 <a class="code" href="classeo_gen_continue.html">eoGenContinue<Chrom></a> continuator1(generations.<a class="code" href="classeo_value_param.html#a2">value</a>());
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00138 phenotype p; p.val_ok = validate.size() - 1; p.mse_error = 0;
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00139 <a class="code" href="classeo_fit_continue.html">eoFitContinue<Chrom></a> continuator2(p);
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00140 <a class="code" href="classeo_combined_continue.html">eoCombinedContinue<Chrom></a> continuator(continuator1, continuator2);
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00141
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00142 <span class="comment">// checkpoint</span>
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00143 <a class="code" href="classeo_check_point.html">eoCheckPoint<Chrom></a> checkpoint(continuator);
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00144
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00145 <span class="comment">// monitor</span>
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00146 <a class="code" href="classeo_stdout_monitor.html">eoStdoutMonitor</a> monitor;
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00147 checkpoint.add(monitor);
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00148
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00149 <span class="comment">// statistics</span>
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00150 <a class="code" href="classeo_best_fitness_stat.html">eoBestFitnessStat<Chrom></a> stats;
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00151 checkpoint.add(stats);
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00152 monitor.<a class="code" href="classeo_monitor.html#a1">add</a>(stats);
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00153
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00154 <span class="comment">// genetic algorithm</span>
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00155 <a class="code" href="classeo_s_g_a.html">eoSGA<Chrom></a> sga(select,
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00156 xover, xover_rate.<a class="code" href="classeo_value_param.html#a2">value</a>(),
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00157 mutation, mut_rate.<a class="code" href="classeo_value_param.html#a2">value</a>(),
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00158 evaluator,
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00159 checkpoint);
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00160
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00161 sga(pop);
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00162
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00163 cout << <span class="stringliteral">"best: "</span> << *max_element(pop.begin(), pop.end()) << endl;
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00164 }
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00165
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00166 <span class="comment">//-----------------------------------------------------------------------------</span>
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00167
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00168 <span class="comment">// Local Variables: </span>
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00169 <span class="comment">// mode:C++</span>
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00170 <span class="comment">// End:</span>
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</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu Oct 19 05:06:40 2006 for EO by
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<a href="http://www.doxygen.org/index.html">
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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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