66 lines
2 KiB
C++
66 lines
2 KiB
C++
/*
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(c) 2010 Thales group
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; version 2
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of the License.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Contact: http://eodev.sourceforge.net
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Authors:
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Johann Dréo <johann.dreo@thalesgroup.com>
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*/
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#ifndef _eoFeasibleRatioStat_h_
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#define _eoFeasibleRatioStat_h_
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#include <algorithm>
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#include <eoDualFitness.h>
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#include <utils/eoLogger.h>
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#include "eoStat.h"
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/** Ratio of the number of individuals with a feasible dual fitness in the population (@see eoDualFitness)
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*
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* @ingroup Stats
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*/
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template<class EOT>
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class eoFeasibleRatioStat : public eoStat< EOT, double >
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{
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public:
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using eoStat<EOT, double>::value;
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eoFeasibleRatioStat( std::string description = "FeasibleRatio" ) : eoStat<EOT,double>( 0.0, description ) {}
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virtual void operator()( const eoPop<EOT> & pop )
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{
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#ifndef NDEBUG
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assert( pop.size() > 0 );
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double count = static_cast<double>( std::count_if( pop.begin(), pop.end(), eoIsFeasible<EOT> ) );
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double size = static_cast<double>( pop.size() );
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double ratio = count/size;
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eo::log << eo::xdebug << "eoFeasibleRatioStat: " << count << " / " << size << " = " << ratio << std::endl;
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value() = ratio;
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#else
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value() = static_cast<double>( std::count_if( pop.begin(), pop.end(), eoIsFeasible<EOT> ) ) / static_cast<double>( pop.size() );
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#endif
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}
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virtual std::string className(void) const { return "eoFeasibleRatioStat"; }
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};
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#endif // _eoFeasibleRatioStat_h_
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