J. J. Merelo-Guervós > Algorithm-Evolutionary-0.78 > Algorithm::Evolutionary::Op::IncMutation

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Module Version: 3.001   Source   Latest Release: Algorithm-Evolutionary-0.79_2

NAME ^

Algorithm::Evolutionary::Op::IncMutation - Increments/decrements by one the value of one of the components of the string, takes into account the char class

SYNOPSIS ^

  my $xmlStr2=<<EOC;
  <op name='IncMutation' type='unary' rate='0.5' />
  EOC
  my $ref2 = XMLin($xmlStr2);

  my $op2 = Algorithm::Evolutionary::Op::Base->fromXML( $ref2 );
  print $op2->asXML(), "\n*Arity ", $op->arity(), "\n";

  my $op = new Algorithm::Evolutionary::Op::IncMutation; #Create from scratch

Base Class ^

Algorithm::Evolutionary::Op::Base

DESCRIPTION ^

  Mutation operator for a GA; changes a single element in a string by
  changing it to the next in the sequence deducted from the chromosome
  itself.

create()

Creates a new mutation operator.

apply( $indiv )

Applies mutation operator to a "Chromosome", a string, really. Can be applied only to victims with the _str instance variable; but it checks before application that both operands are of the required type. The chosen character is changed to the next or previous in the array of chars used for coding the the string my $strChrom = new Algorithm::Evolutionary::Individual::String ['a','c','g','t'] 10; my $xmen = new Algorithm::Evolutionary::Op::IncMutation; $xmen->apply( $strChrom ) # will change 'acgt' into 'aagt' or # 'aggt', for instance

Issues an error if there is no _chars array, which is needed for computing the next.

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: 2011/02/14 06:55:36 $ 
  $Header: /cvsroot/opeal/Algorithm-Evolutionary/lib/Algorithm/Evolutionary/Op/IncMutation.pm,v 3.1 2011/02/14 06:55:36 jmerelo Exp $ 
  $Author: jmerelo $ 
  $Revision: 3.1 $
  $Name $
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