7ec7a856e5
- the last modifications of the eopopulator class - the include files (were totally missing in the old templates) - JJ's demand for one class - one file :-)
69 lines
2 KiB
Cheetah
69 lines
2 KiB
Cheetah
/*
|
|
Template for general operators
|
|
===============================
|
|
i.e. that takes any number of parents and generates any number of offspring
|
|
|
|
a GenOp that creates less offspring than there are parents
|
|
|
|
Second version, get parents using an external eoSelectOne
|
|
*/
|
|
|
|
#ifndef eoLessOffspringExternalSelectorGenOp_H
|
|
#define eoLessOffspringExternalSelectorGenOp_H
|
|
|
|
#include <eoGenOp.h>
|
|
|
|
template<class Indi>
|
|
class eoLessOffspringExternalSelectorGenOp: public eoGenOp<Indi>
|
|
{
|
|
public:
|
|
/**
|
|
* (Default) Constructor.
|
|
*/
|
|
eoLessOffspringExternalSelectorGenOp(eoSelectOne<EOT> & _sel, paramType _anyParameter) :
|
|
sel(_sel), anyParameter(_anyParameter) {}
|
|
|
|
/// The class name. Used to display statistics
|
|
string className() const { return "eoLessOffspringExternalSelectorGenOp"; }
|
|
|
|
/// The TOTAL number of offspring (here = nb of parents modified in place)
|
|
unsigned max_production(void) { return NbLeftParents; }
|
|
|
|
/**
|
|
* eoShrinkGen operator - modifies some parents in the populator
|
|
* using extra "parents" selected from an external selector
|
|
*
|
|
* @param _pop a POPULATOR (not a simple population)
|
|
*/
|
|
void apply(eoPopulator<EOT>& _plop)
|
|
{
|
|
// First, select as many parents as you will have offspring
|
|
EOT& parent1 = *_plop; // select the first parent
|
|
++_plop; // advance once for each selected parents
|
|
...
|
|
EOT& parentN = *_plop; // say you want N offspring
|
|
|
|
// get extra parents - use private selector
|
|
// _plop.source() is the eoPop<EOT> used by _plop to get parents
|
|
// WARNING: you are not allowed to modify them (mandatory "const")
|
|
const EOT& parentN+1 = sel(_plop.source());
|
|
...
|
|
const EOT& parentN+K = sel(_plop.source());
|
|
|
|
// modify (in place) the "true" parents
|
|
// (i.e. parent1, ..., parentsN)
|
|
...
|
|
|
|
// invalidate fitnesses of modified parents
|
|
parent1.invalidate();
|
|
...
|
|
parentN.invalidate();
|
|
}
|
|
|
|
|
|
protected:
|
|
eoSelectOne<EOT> & sel;
|
|
paramType anyParameter
|
|
};
|
|
|
|
#endif
|