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eoDualStatSwitch, a wrapper for computing stats on feasible and unfeasible individuals, separately

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Johann Dreo 2010-11-15 09:30:37 +01:00
commit 3d4d73a622
1 changed files with 67 additions and 1 deletions
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68
eo/src/eoDualFitness.h
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@ -29,6 +29,10 @@ Authors:
#include <functional>
#include <iostream>
#include <utility> // for std::pair
#include <string>
#include <utils/eoStat.h>
#include <utils/eoLogger.h>
/** @addtogroup Evaluation
* @{
@ -63,7 +67,7 @@ Authors:
template <class BaseType, class Compare >
class eoDualFitness
{
private:
protected:
//! Scalar type of the fitness (generally a double)
BaseType _value;
@ -241,6 +245,68 @@ typedef eoDualFitness<double, std::greater<double> > eoMinimizingDualFitness;
template< class EOT>
bool eoIsFeasible ( const EOT & sol ) { return sol.fitness().is_feasible(); }
/** Embed two eoStat and call the first one on the feasible individuals and
* the second one on the unfeasible ones, merge the two resulting value in
* a string, separated by a given marker.
*/
//template<class EOT, class T>
template<class EOT, class EOSTAT>
class eoDualStatSwitch : public eoStat< EOT, std::string >
{
public:
using eoStat<EOT,std::string>::value;
// eoDualStatSwitch( eoStat<EOT,T> & stat_feasible, eoStat<EOT,T> & stat_unfeasible, std::string sep=" " ) :
eoDualStatSwitch( EOSTAT & stat_feasible, EOSTAT & stat_unfeasible, std::string sep=" " ) :
_stat_feasible(stat_feasible),
_stat_unfeasible(stat_unfeasible),
_sep(sep),
eoStat<EOT,std::string>(
"?"+sep+"?",
stat_feasible.longName()+sep+stat_unfeasible.longName()
)
{ }
virtual void operator()( const eoPop<EOT> & pop )
{
eoPop<EOT> pop_feasible;
pop_feasible.reserve(pop.size());
eoPop<EOT> pop_unfeasible;
pop_unfeasible.reserve(pop.size());
for( typename eoPop<EOT>::const_iterator ieot=pop.begin(), iend=pop.end(); ieot!=iend; ++ieot ) {
/*
if( ieot->invalid() ) {
eo::log << eo::errors << "ERROR: trying to access to an invalid fitness" << std::endl;
}
*/
if( ieot->fitness().is_feasible() ) {
pop_feasible.push_back( *ieot );
} else {
pop_unfeasible.push_back( *ieot );
}
}
_stat_feasible( pop_feasible );
_stat_unfeasible( pop_unfeasible );
std::ostringstream out;
out << _stat_feasible.value() << _sep << _stat_unfeasible.value();
value() = out.str();
}
protected:
// eoStat<EOT,T> & _stat_feasible;
// eoStat<EOT,T> & _stat_unfeasible;
EOSTAT & _stat_feasible;
EOSTAT & _stat_unfeasible;
std::string _sep;
};
/** @} */
#endif // _eoDualFitness_h_