3298fadc1e
git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@217 331e1502-861f-0410-8da2-ba01fb791d7f
81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
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//-----------------------------------------------------------------------------
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// moeoRouletteSelect.h
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// (c) OPAC Team (LIFL), Dolphin Project (INRIA), 2007
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/*
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This library...
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Contact: paradiseo-help@lists.gforge.inria.fr, http://paradiseo.gforge.inria.fr
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*/
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//-----------------------------------------------------------------------------
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#ifndef MOEOROULETTESELECT_H_
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#define MOEOROULETTESELECT_H_
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#include <moeoSelectOne.h>
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#include <moeoSelectors.h>
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/**
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* Selection strategy that selects ONE individual by using roulette wheel process.
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*/
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template < class MOEOT >
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class moeoRouletteSelect:public moeoSelectOne <MOEOT>
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{
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public:
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/**
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* Full Ctor.
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* @param _comparator the comparator (used to compare 2 individuals)
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* @param _tSize the number of individuals in the tournament (default: 2)
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*/
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moeoRouletteSelect (moeoComparator < MOEOT > &_comparator, unsigned _tSize = 2):
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comparator (_comparator), tSize (_tSize)
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{
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// consistency check
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if (tSize < 2)
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{
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std::
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cout << "Warning, Tournament size should be >= 2\nAdjusted to 2\n";
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tSize = 2;
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}
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}
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/**
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* Ctor without comparator. A moeoFitnessThenDiversityComparator is used as default.
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* @param _tSize the number of individuals in the tournament (default: 2)
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*/
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moeoRouletteSelect (unsigned _tSize = 2):
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comparator (*(new moeoFitnessThenDiversityComparator < MOEOT > ())),
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tSize (_tSize)
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{
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// consistency check
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if (tSize < 2)
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{
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std::
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cout << "Warning, Tournament size should be >= 2\nAdjusted to 2\n";
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tSize = 2;
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}
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}
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/**
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* Apply the tournament to the given population
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*/
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const MOEOT & operator () (const eoPop < MOEOT > &_pop)
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{
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// use the selector
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return mo_roulette_wheel(_pop,total); //comparator ??
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}
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protected:
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moeoComparator < MOEOT > &comparator;
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double & total;
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};
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#endif /*MOEOROULETTESELECT_H_ */
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