Renamed gprop.cc into gprop.cpp for MSVC
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evomarc
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167
eo/app/gprop/gprop.cpp
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167
eo/app/gprop/gprop.cpp
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//-----------------------------------------------------------------------------
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// gprop
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//-----------------------------------------------------------------------------
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#include <stdlib.h> // EXIT_SUCCESS EXIT_FAILURE
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#include <stdexcept> // exception
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#include <iostream> // cerr cout
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#include <fstream> // ifstream
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#include <string> // string
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#include <eo> // all usefull eo stuff
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#include "gprop.h" // Chrom eoChromInit eoChromMutation eoChromXover eoChromEvaluator
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//-----------------------------------------------------------------------------
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// global variables
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//-----------------------------------------------------------------------------
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unsigned in, out, hidden;
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//-----------------------------------------------------------------------------
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// parameters
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//-----------------------------------------------------------------------------
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eoValueParam<unsigned> pop_size(10, "pop_size", "population size", 'p');
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eoValueParam<unsigned> generations(10, "generations", "number of generation", 'g');
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eoValueParam<double> mut_rate(0.25, "mut_rate", "mutation rate", 'm');
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eoValueParam<double> xover_rate(0.25, "xover_rate", "default crossover rate", 'x');
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eoValueParam<string> file("", "file", "common start of patterns filenames *.trn *.val and *.tst", 'f');
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eoValueParam<unsigned> hiddenp(0, "hidden", "number of neurons in hidden layer", 'd');
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//-----------------------------------------------------------------------------
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// auxiliar functions
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//-----------------------------------------------------------------------------
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void arg(int argc, char** argv);
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void load_file(mlp::set& s, const string& s);
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void ga();
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//-----------------------------------------------------------------------------
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// main
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//-----------------------------------------------------------------------------
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int main(int argc, char** argv)
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{
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try
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{
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arg(argc, argv);
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ga();
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}
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catch (exception& e)
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{
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cerr << argv[0] << ": " << e.what() << endl;
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exit(EXIT_FAILURE);
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}
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return 0;
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}
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//-----------------------------------------------------------------------------
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// implementation
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//-----------------------------------------------------------------------------
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void arg(int argc, char** argv)
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{
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eoParser parser(argc, argv);
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parser.processParam(pop_size, "genetic operators");
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parser.processParam(generations, "genetic operators");
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parser.processParam(mut_rate, "genetic operators");
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parser.processParam(xover_rate, "genetic operators");
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parser.processParam(file, "files");
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parser.processParam(hiddenp, "genetic operators");
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if (parser.userNeedsHelp())
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{
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parser.printHelp(cout);
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exit(EXIT_SUCCESS);
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}
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load_file(trn_set, "trn");
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load_file(val_set, "val");
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load_file(tst_set, "tst");
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phenotype::trn_max = trn_set.size();
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phenotype::val_max = val_set.size();
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phenotype::tst_max = tst_set.size();
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in = trn_set.front().input.size();
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out = trn_set.front().output.size();
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hidden = hiddenp.value();
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}
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//-----------------------------------------------------------------------------
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void load_file(mlp::set& set, const string& ext)
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{
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string filename = file.value(); filename += "." + ext;
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ifstream ifs(filename.c_str());
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if (!ifs)
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{
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cerr << "can't open file \"" << filename << "\"" << endl;
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exit(EXIT_FAILURE);
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}
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ifs >> set;
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if (set.size() == 0)
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{
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cerr << filename << " data file is empty!";
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exit(EXIT_FAILURE);
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}
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}
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//-----------------------------------------------------------------------------
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void ga()
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{
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// create population
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eoInitChrom init;
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eoPop<Chrom> pop(pop_size.value(), init);
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// evaluate population
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eoEvalFuncPtr<Chrom> evaluator(eoChromEvaluator);
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apply<Chrom>(evaluator, pop);
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// selector
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eoStochTournamentSelect<Chrom> select;
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// genetic operators
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eoChromMutation mutation;
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eoChromXover xover;
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// stop condition
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eoGenContinue<Chrom> continuator1(generations.value());
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phenotype p; p.val_ok = val_set.size() - 1; p.mse_error = 0;
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eoFitContinue<Chrom> continuator2(p);
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eoCombinedContinue<Chrom> continuator(continuator1, continuator2);
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// checkpoint
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eoCheckPoint<Chrom> checkpoint(continuator);
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// monitor
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eoStdoutMonitor monitor;
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checkpoint.add(monitor);
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// statistics
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eoBestFitnessStat<Chrom> stats;
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checkpoint.add(stats);
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monitor.add(stats);
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// genetic algorithm
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eoSGA<Chrom> sga(select,
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xover, xover_rate.value(),
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mutation, mut_rate.value(),
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evaluator,
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checkpoint);
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sga(pop);
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cout << "best: " << *max_element(pop.begin(), pop.end()) << endl;
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}
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//-----------------------------------------------------------------------------
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// Local Variables:
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// mode:C++
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// End:
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