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// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
//-----------------------------------------------------------------------------
// eoCombinedInit.h
// (c) Maarten Keijzer, GeNeura Team, Marc Schoenauer 2004
/*
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: Marc.Schoenauer@inria.fr
*/
//-----------------------------------------------------------------------------
#ifndef _eoCombinedInit_h
#define _eoCombinedInit_h
#include <eoInit.h>
/**
Combined INIT: a proportional recombination of eoInit objects
@ingroup Initializators
*/
template< class EOT>
class eoCombinedInit: public eoInit<EOT> {
public:
/** Ctor, make sure that at least one eoInit is present */
eoCombinedInit( eoInit<EOT>& _init, double _rate)
: eoInit<EOT> ()
{
initializers.push_back(&_init);
rates.push_back(_rate);
}
/* FIXME remove in next release
void add(eoInit<EOT> & _init, double _rate, bool _verbose)
{
eo::log << eo::warnings << "WARNING: the use of the verbose parameter in eoCombinedInit::add is deprecated and will be removed in the next release." << std::endl;
add( _init, _rate );
}
*/
/** The usual method to add objects to the combination
*/
void add(eoInit<EOT> & _init, double _rate)
{
initializers.push_back(&_init);
rates.push_back(_rate);
// compute the relative rates in percent - to warn the user!
printOn( eo::log << eo::logging );
}
/** outputs the operators and percentages */
virtual void printOn(std::ostream & _os)
{
double total = 0;
unsigned i;
for (i=0; i<initializers.size(); i++)
total += rates[i];
_os << "In " << className() << "\n" ;
for (i=0; i<initializers.size(); i++)
_os << initializers[i]->className() << " with rate " << 100*rates[i]/total << " %\n";
}
/** Performs the init: chooses among all initializers
* using roulette wheel on the rates
*/
virtual void operator() ( EOT & _eo )
{
unsigned what = rng.roulette_wheel(rates); // choose one op
(*initializers[what])(_eo); // apply it
return;
}
virtual std::string className(void) const { return "eoCombinedInit"; }
private:
std::vector<eoInit<EOT>*> initializers;
std::vector<double> rates;
};
#endif
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