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Moved eoSGATransform into a separate file and added the dynamic version

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(where arguments can be passed by value or by reference).
Modified eo accordingly
This commit is contained in:
evomarc 2000-12-26 08:33:48 +00:00
commit d7693131a6
3 changed files with 166 additions and 85 deletions
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61
eo/src/eoSGA.h
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@ -109,65 +109,4 @@ private :
eoEvalFunc<EOT>& eval;
};
///////////////////////////////////////////////////////////////////////////////
// class eoSGATransform
///////////////////////////////////////////////////////////////////////////////
#include <vector> // vector
#include <utils/eoRNG.h>
#include <eoTransform.h>
/*****************************************************************************
* eoSGATransform: transforms a population using genetic operators.
* It does it exactly as class eoSGA, i.e. only accepts
* quadratic crossover and unary mutation
* It is here mainly for tutorial reasons
*****************************************************************************/
template<class EOT> class eoSGATransform : public eoTransform<EOT>
{
public:
/// Default constructor.
eoSGATransform(eoQuadraticOp<EOT>& _cross, float _crate,
eoMonOp<EOT>& _mutate, float _mrate)
: cross(_cross),
crossoverRate(_crate),
mutate(_mutate),
mutationRate(_mrate) {}
/**
* Transforms a population.
* @param pop The population to be transformed.
*/
void operator()(eoPop<EOT>& _pop)
{
unsigned i;
for (i=0; i<_pop.size()/2; i++)
{
if ( rng.flip(crossoverRate) )
{
// this crossover generates 2 offspring from two parents
cross(_pop[2*i], _pop[2*i+1]);
}
}
for (i=0; i < _pop.size(); i++)
{
if (rng.flip(mutationRate) )
{
mutate(_pop[i]);
}
}
};
private:
eoQuadraticOp<EOT>& cross;
float crossoverRate;
eoMonOp<EOT>& mutate;
float mutationRate;
};
#endif