paradiseo/eo/test/t-eogeneration.cpp
1999-10-04 11:17:19 +00:00

88 lines
2 KiB
C++

//-----------------------------------------------------------------------------
// t-eogeneration.cpp
//-----------------------------------------------------------------------------
// to avoid long name warnings
#pragma warning(disable:4786)
#include <eo>
//-----------------------------------------------------------------------------
typedef eoBin<float> Chrom;
//-----------------------------------------------------------------------------
void binary_value(Chrom& chrom)
{
float sum = 0;
for (unsigned i = 0; i < chrom.size(); i++)
if (chrom[i])
sum += pow(2, chrom.size() - i - 1);
chrom.fitness(sum);
}
//-----------------------------------------------------------------------------
main()
{
const unsigned POP_SIZE = 8, CHROM_SIZE = 16;
unsigned i;
eoUniform<Chrom::Type> uniform(false, true);
eoBinRandom<Chrom> random;
eoPop<Chrom> pop;
for (i = 0; i < POP_SIZE; ++i)
{
Chrom chrom(CHROM_SIZE);
random(chrom);
binary_value(chrom);
pop.push_back(chrom);
}
cout << "population:" << endl;
for (i = 0; i < pop.size(); ++i)
cout << "\t" << pop[i] << " " << pop[i].fitness() << endl;
// selection
eoLottery<Chrom> lottery;
// breeder
eoBinBitFlip<Chrom> bitflip;
eoBinCrossover<Chrom> xover;
eoProportionalOpSel<Chrom> propSel;
eoBreeder<Chrom> breeder( propSel );
propSel.addOp(bitflip, 0.25);
propSel.addOp(xover, 0.75);
// replacement
eoInclusion<Chrom> inclusion;
// GA generation
eoGeneration<Chrom> generation(lottery, breeder, inclusion);
// evolution
unsigned g = 0;
do {
try
{
generation(pop, binary_value);
}
catch (exception& e)
{
cout << "exception: " << e.what() << endl;;
exit(EXIT_FAILURE);
}
cout << "pop[" << ++g << "]" << endl;
for (i = 0; i < pop.size(); ++i)
cout << "\t" << pop[i] << " " << pop[i].fitness() << endl;
} while (pop[0].fitness() < pow(2.0, CHROM_SIZE) - 1);
return 0;
}
//-----------------------------------------------------------------------------