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moeoDetArchiveSelect added

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git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@1612 331e1502-861f-0410-8da2-ba01fb791d7f
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jhumeau 2009-10-12 14:33:31 +00:00
commit 2d9ab9ee39
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trunk/paradiseo-moeo/src/selection/moeoDetArchiveSelect.h Normal file
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#ifndef MOEODETARCHIVESELECT_H
#define MOEODETARCHIVESELECT_H
#include <eoSelect.h>
#include <cassert>
template<class MOEOT>
class moeoDetArchiveSelect : public eoSelect<MOEOT>
{
public:
moeoDetArchiveSelect(moeoArchive < MOEOT > & _archive, unsigned int _max, unsigned int _min=0) :
archive(_archive), max(_max), min(_min) {}
/**
* Repopulate copying the archive, selecting randomly if the archive size is over bounds (min and max)
* @param _source compatibility parameter, not used
* @param _dest destination population, selected from archive
*/
virtual void operator()(const eoPop < MOEOT > & _source, eoPop < MOEOT > & _dest)
{
if(max < min){
std::cout << "Warning! moeoDetArchiveSelect: min value > max value!!! Nothing is done." << std::endl;
}
else{
unsigned int archive_size = archive.size();
_dest.resize(0);
if (archive_size >= min && archive_size<= max){
for (int i=0; i<archive_size; i++)
_dest.push_back(archive[i]);
}
else if (archive_size > max){
UF_random_generator<unsigned int> rndGen;
std::vector <int> permutation;
for(int i=0; i < archive_size; i++)
permutation.push_back(i);
random_shuffle(permutation.begin(), permutation.end(), rndGen);
for (int i=0; i<max; i++)
_dest.push_back(archive[permutation[i]]);
}
else {
for (int i=0; i<min; i++)
_dest.push_back(archive[i%archive_size]);
}
}
}
private :
/** archive used to select MOEOT*/
moeoArchive < MOEOT > & archive;
/** max is the maximum size of the new population*/
unsigned int max;
/** min is the minimum size of the new population (default 0) */
unsigned int min;
};
#endif /*MOEODETARCHIVESELECT_H*/