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

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.

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: 2002/11/19 12:26:49 $ 
  $Header: /cvsroot/opeal/opeal/Algorithm/Evolutionary/Op/IncMutation.pm,v 1.4 2002/11/19 12:26:49 jmerelo Exp $ 
  $Author: jmerelo $ 
  $Revision: 1.4 $
  $Name $