71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
//-----------------------------------------------------------------------------
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// t-eobreeder.cpp
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//-----------------------------------------------------------------------------
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// to avoid long name warnings
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#pragma warning(disable:4786)
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#include <eoBin.h> // eoBin, eoPop, eoBreeder
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#include <eoPop.h>
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#include <eoBitOp.h>
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#include <eoProportionalOpSel.h>
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#include <eoBreeder.h>
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//-----------------------------------------------------------------------------
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typedef eoBin<float> Chrom;
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//-----------------------------------------------------------------------------
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void binary_value(Chrom& chrom)
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{
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float sum = 0;
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for (unsigned i = 0; i < chrom.size(); i++)
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if (chrom[i])
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sum += pow(2, chrom.size() - i - 1);
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chrom.fitness(sum);
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}
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//-----------------------------------------------------------------------------
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main()
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{
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const unsigned POP_SIZE = 8, CHROM_SIZE = 4;
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unsigned i;
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eoUniform<Chrom::Type> uniform(false, true);
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eoBinRandom<Chrom> random;
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eoPop<Chrom> pop;
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for (i = 0; i < POP_SIZE; ++i)
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{
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Chrom chrom(CHROM_SIZE);
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random(chrom);
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binary_value(chrom);
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pop.push_back(chrom);
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}
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cout << "population:" << endl;
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for (i = 0; i < pop.size(); ++i)
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cout << pop[i] << " " << pop[i].fitness() << endl;
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eoBinBitFlip<Chrom> bitflip;
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eoBinCrossover<Chrom> xover;
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eoProportionalOpSel<Chrom> propSel;
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eoBreeder<Chrom> breeder( propSel );
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propSel.addOp(bitflip, 0.25);
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propSel.addOp(xover, 0.75);
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breeder(pop);
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// reevaluation of fitness
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for_each(pop.begin(), pop.end(), binary_value);
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cout << "new population:" << endl;
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for (i = 0; i < pop.size(); ++i)
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cout << pop[i] << " " << pop[i].fitness() << endl;
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return 0;
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}
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//-----------------------------------------------------------------------------
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