6acdcb6d9b
The interface for eoReplacement is now eoPop<EOT>&, eoPop<EOT>& (i.e. no const) and the result must be in the first argument in the end. Hence it is possible to do SSGA and all intermediate replacmeent procedures The classes derived from eoMergeReduce.h are now in a separate file The SSGA-like replcaement procedures are in eoReduceMerge.h A more general replacement can be found in eoSurviveAndDie.h (it could be made a littel more general - still open for upgrades). Also some accessors have been added to the eoPop (best and worse individuals) And include file eo has been updated
72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
/** -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
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-----------------------------------------------------------------------------
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eoSelectNumber.h
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(c) Maarten Keijzer, Marc Schoenauer, GeNeura Team, 2000
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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; either
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version 2 of the License, or (at your option) any later version.
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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: todos@geneura.ugr.es, http://geneura.ugr.es
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*/
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//-----------------------------------------------------------------------------
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#ifndef _eoSelectNumber_h
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#define _eoSelectNumber_h
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//-----------------------------------------------------------------------------
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#include <eoSelect.h>
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#include <eoSelectOne.h>
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#include <math.h>
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//-----------------------------------------------------------------------------
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/** eoSelectNumber selects many individuals using eoSelectOne as it's
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mechanism. Therefore eoSelectNumber needs an eoSelectOne in its ctor
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It will select a fixed number of individuals and pushes them to
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the back of the destination population.
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*/
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template<class EOT>
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class eoSelectNumber : public eoSelect<EOT>
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{
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public:
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/// init
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eoSelectNumber(eoSelectOne<EOT>& _select, unsigned _nb_to_select = 1)
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: select(_select), nb_to_select(_nb_to_select) {}
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/**
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The implementation repeatidly selects an individual
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@param _source the source population
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@param _dest the resulting population (size of this population is the number of times eoSelectOne is called. It empties the destination and adds the selection into it)
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*/
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virtual void operator()(const eoPop<EOT>& _source, eoPop<EOT>& _dest)
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{
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size_t target = static_cast<size_t>(nb_to_select);
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_dest.resize(target);
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select.setup(_source);
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for (size_t i = 0; i < _dest.size(); ++i)
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_dest[i] = select(_source);
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}
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private :
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eoSelectOne<EOT>& select;
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unsigned nb_to_select;
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};
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#endif
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