NAME

Algorithm::Evolutionary::Individual::Bit_Vector - Classic bitstring individual for evolutionary computation; 
             usually called chromosome, and using a different implementation from Algorithm::Evolutionary::Individual::BitString

SYNOPSIS

   use Algorithm::Evolutionary::Individual::BitVector;

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

   my $indi3 = new Algorithm::Evolutionary::Individual::Bit_Vector;
   $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 $indi4 = Algorithm::Evolutionary::Individual::Bit_Vector->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::Bit_Vector', @array;
   print tied( @vector )->asXML();

   print $indi3->asString(); #Prints the individual
   print $indi3->asXML() #Prints it as XML. See L<Algorithm::Evolutionary::XML>
   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( $arg )

Creates a new bitstring individual. $arg can be either { length => $length} or { string => [binary string] }. With no argument, a length of 16 is given by default.

Atom

Sets or gets the value of the n-th character in the string. Counting starts at 0, as usual in Perl arrays.

size()

Returns size in bits

clone()

Clones using native methods. Does not work with general Clone::Fast, since it's implemented as an XS

as_string()

Overrides the default; prints the binary chromosome

Chrom()

Returns the internal bit_vector

TIE methods

String implements FETCH, STORE, PUSH and the rest, so an String can be tied to an array and used as such.

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: 2010/12/19 21:39:12 $ 
$Header: /cvsroot/opeal/Algorithm-Evolutionary/lib/Algorithm/Evolutionary/Individual/Bit_Vector.pm,v 3.1 2010/12/19 21:39:12 jmerelo Exp $ 
$Author: jmerelo $ 
$Revision: 3.1 $
$Name $