/ 
Algorithm-Evolutionary-0.67
River stage one • 3 direct dependents • 4 total dependents
/ Algorithm::Evolutionary::Individual::BitString

NAME

Algorithm::Evolutionary::Individual::BitString - Classic bitstring individual for evolutionary computation; 
             usually called I<chromosome>

SYNOPSIS

   use Algorithm::Evolutionary::Individual::BitString;

   my $indi = new Algorithm::Evolutionary::Individual::BitString 10 ; # Build random bitstring with length 10
                                  # Each element in the range 0 .. 1

   my $indi3 = new Algorithm::Evolutionary::Individual::BitString;
   $indi3->set( { length => 20 } );   #Sets values, but does not build the string
   
   $indi3->randomize(); #Creates a random bitstring with length as above

   print $indi3->Atom( 7 );       #Returns the value of the 7th character
   $indi3->Atom( 3 ) = 1;       #Sets the value

   $indi3->addAtom( 1 ); #Adds a new character to the bitstring at the end
   my $size = $indi3->size(); #Common interface to all individuals, should return 21

   my $indi4 = Algorithm::Evolutionary::Individual::BitString->fromString( '10110101');   #Creates an individual from that string

   my $indi5 = $indi4->clone(); #Creates a copy of the individual

   my @array = qw( 0 1 0 1 0 0 1 ); #Create a tied array
   tie my @vector, 'Algorithm::Evolutionary::Individual::BitString', @array;
   print tied( @vector )->asXML();

   print $indi3->asString(); #Prints the individual
   print $indi3->asXML() #Prints it as XML. See 
   print $indi3->as_yaml() #Change of convention, I know...

Base Class

Algorithm::Evolutionary::Individual::String

DESCRIPTION

Bitstring Individual for a Genetic Algorithm. Used, for instance, in a canonical GA

METHODS

new( $length )

Creates a new random bitstring individual, with fixed initial length, and uniform distribution of bits. Options as in Algorithm::Evolutionary::Individual::String

set( $hash )

Sets values of an individual; takes a hash as input. Keys are prepended an underscore and turn into instance variables

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: 2009/02/04 20:43:14 $ 
$Header: /cvsroot/opeal/Algorithm-Evolutionary/lib/Algorithm/Evolutionary/Individual/BitString.pm,v 2.1 2009/02/04 20:43:14 jmerelo Exp $ 
$Author: jmerelo $ 
$Revision: 2.1 $
$Name $