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Extreme cleanup, see src/obsolete for details

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mac 2000-08-10 14:18:34 +00:00
commit 6d8e3a6504
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130
eo/src/eoRandomSelect.h
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// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
//-----------------------------------------------------------------------------
// eoRandomSelect.h
// (c) GeNeura Team, 1998
/*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Contact: todos@geneura.ugr.es, http://geneura.ugr.es
*/
//-----------------------------------------------------------------------------
#ifndef EORANDOMSELECT_H
#define EORANDOMSELECT_H
//-----------------------------------------------------------------------------
#include <algorithm>
#include <numeric> // for accumulate
#include <functional>
#include <eoPopOps.h>
#include <utils/eoRNG.h>
//-----------------------------------------------------------------------------
/**
* eoRandomSelect: an selection operator, which selects randomly a percentage
of the initial population.
*/
template<class EOT> class eoRandomSelect: public eoBinPopOp<EOT>
{
public:
///
eoRandomSelect(const float& _percent = 0.4):
eoBinPopOp<EOT>(), repRate(_percent) {};
///
virtual ~eoRandomSelect() {};
/// Takes a percentage of the population randomly, and transfers it to siblings
virtual void operator() ( eoPop<EOT>& _parents, eoPop<EOT>& _siblings ) {
// generates random numbers
unsigned num_chroms = (unsigned)(repRate * _parents.size());
// selection of chromosomes
do {
_siblings.push_back(_parents[rng.random(_parents.size())]);
} while (_siblings.size() < num_chroms);
}
/// @name Methods from eoObject
//@{
/**
* Read object. Reads the percentage
* Should call base class, just in case.
* @param _s A istream.
*/
virtual void readFrom(istream& _s) {
_s >> repRate;
}
/** Print itself: inherited from eoObject implementation. Declared virtual so that
it can be reimplemented anywhere. Instance from base classes are processed in
base classes, so you don´t have to worry about, for instance, fitness.
@param _s the ostream in which things are written*/
virtual void printOn( ostream& _s ) const{
_s << repRate;
}
/** Inherited from eoObject
@see eoObject
*/
string className() const {return "eoRandomSelect";};
//@}
private:
float repRate;
};
//-----------------------------------------------------------------------------
#endif EOGSRANDOMSELECT_H