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J. J. Merelo-Guervós > Algorithm-Evolutionary-0.79_1 > Algorithm::Evolutionary::Op::Convergence_Terminator

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Module Version: 3.1   Source   Latest Release: Algorithm-Evolutionary-0.80

NAME ^

Algorithm::Evolutionary::Op::Convergence_Terminator - Checks for termination of an algorithm, returns true if a certain percentage of the population is the same

SYNOPSIS ^

  my $ct = new Algorithm::Evolutionary::Op::Convergence_Terminator 0.5; 
  do {
    $generation->apply($pop_hashref );
  } until ($ct->apply( $pop_hashref );

Base Class ^

Algorithm::Evolutionary::Op::Base

DESCRIPTION ^

Checks for termination after if population has converged

METHODS ^

new( [$population_proportion = 0.5] )

Creates a new generational terminator:

  my $ct = new Algorithm::Evolutionary::Op::Convergence_Terminator 0.5; 

will make the apply method return false after if 50% of the population are the same, that is, its "genetic" representation is equal.

apply()

Checks for population convergence

See Also ^

Algorithm::Evolutionary::Op::FullAlgorithm needs an object of this class to check for the termination condition. It's normally used alongside "generation-type" objects such as Algorithm::Evolutionary::Op::Easy

There are other options for termination conditions: Algorithm::Evolutionary::Op::NoChangeTerm and Algorithm::Evolutionary::Op::DeltaTerm.

Copyright ^

  This file is released under the GPL. See the LICENSE file included in this distribution,
  or go to http://www.fsf.org/licenses/gpl.txt

  CVS Info: $Date: 2009/07/28 11:30:56 $ 
  $Header: /media/Backup/Repos/opeal/opeal/Algorithm-Evolutionary/lib/Algorithm/Evolutionary/Op/Convergence_Terminator.pm,v 3.1 2009/07/28 11:30:56 jmerelo Exp $ 
  $Author: jmerelo $ 
  $Revision: 3.1 $
  $Name $
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