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# moeoStochTournamentSelect.h

    00001 // -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
    00002
    00003 //-----------------------------------------------------------------------------
    00004 // moeoStochTournamentSelect.h
    00005 // (c) OPAC Team (LIFL), Dolphin Project (INRIA), 2007
    00006 /*
    00007     This library...
    00008
    00009     Contact: paradiseo-help@lists.gforge.inria.fr, http://paradiseo.gforge.inria.fr
    00010  */
    00011 //-----------------------------------------------------------------------------
    00012
    00013 #ifndef MOEOSTOCHTOURNAMENTSELECT_H_
    00014 #define MOEOSTOCHTOURNAMENTSELECT_H_
    00015
    00016 #include <moeoSelectOne.h>
    00017 #include <moeoSelectors.h>
    00018
    00022 template < class MOEOT > class moeoStochTournamentSelect:public moeoSelectOne <MOEOT>
    00023 {
    00024 public:
    00025
    00031     moeoStochTournamentSelect (moeoComparator < MOEOT > & _comparator, double _tRate = 1.0) :
    00032             comparator (_comparator), tRate (_tRate)
    00033     {
    00034         // consistency checks
    00035         if (tRate < 0.5)
    00036         {
    00037             std::
    00038             cerr <<
    00039             "Warning, Tournament rate should be > 0.5\nAdjusted to 0.55\n";
    00040             tRate = 0.55;
    00041         }
    00042         if (tRate > 1)
    00043         {
    00044             std::
    00045             cerr << "Warning, Tournament rate should be < 1\nAdjusted to 1\n";
    00046             tRate = 1;
    00047         }
    00048     }
    00049
    00054     moeoStochTournamentSelect (double _tRate = 1.0)
    00055             :comparator (*(new moeoFitnessThenDiversityComparator < MOEOT > ())), tRate (_tRate)
    00056
    00057     {
    00058         // consistency checks
    00059         if (tRate < 0.5)
    00060         {
    00061             std::
    00062             cerr <<
    00063             "Warning, Tournament rate should be > 0.5\nAdjusted to 0.55\n";
    00064             tRate = 0.55;
    00065         }
    00066         if (tRate > 1)
    00067         {
    00068             std::
    00069             cerr << "Warning, Tournament rate should be < 1\nAdjusted to 1\n";
    00070             tRate = 1;
    00071         }
    00072     }
    00073
    00074
    00079     const MOEOT & operator() (const eoPop < MOEOT > &_pop)
    00080     {
    00081         // use the selector
    00082         return mo_stochastic_tournament(_pop,tRate,comparator);
    00083     }
    00084
    00085
    00086
    00087 protected:
    00088
    00090     moeoComparator < MOEOT > & comparator;
    00092     double tRate;
    00093
    00094 };
    00095
    00096 #endif /*MOEOSTOCHTOURNAMENTSELECT_H_ */