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particle-swarm-optimization main templates added

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tlegrand 2007-07-02 12:58:13 +00:00
commit bec7d02c50
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eo/src/eoRandomRealWeightUp.h Normal file
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// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
//-----------------------------------------------------------------------------
// eoRandomRealWeightUp.h
// (c) OPAC 2007
/*
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: thomas.legrand@lifl.fr
*/
//-----------------------------------------------------------------------------
#ifndef EORANDOMREALWEIGHTUP_H
#define EORANDOMREALWEIGHTUP_H
//-----------------------------------------------------------------------------
#include <eoWeightUpdater.h>
#include <utils/eoRNG.h>
//-----------------------------------------------------------------------------
/**
* Update an inertia weight by assigning it an (uniform) random value.
*/
class eoRandomRealWeightUp:public eoWeightUpdater<double>
{
public:
/**
* Default constructor
* @param _min - The minimum bound for the weight
* @param _max - The maximum bound for the weight
*/
eoRandomRealWeightUp(
double _min,
double _max
):min(_min),max(_max)
{
// consistency check
if (min > max)
{
std::string s;
s.append (" min > max in eoRandomRealWeightUp");
throw std::runtime_error (s);
}
}
/**
* Generate an real random number in [min,max] and assign it to _weight
* @param _weight - The assigned (real) weight
*/
void operator() (double & _weight)
{
_weight=rng.uniform(max-min)+min;
}
protected:
double min,max;
};
#endif/*EORANDOMREALWEIGHTUP_H*/