Manual Reference Pages - ALGORITHM::EVOLUTIONARY::INDIVIDUAL::BASE (3)
Algorithm::Evolutionary::Individual::Base - Base class for chromosomes that knows how to build them, and has some helper methods.
my $indi = Algorithm::Evolutionary::Individual::Base->fromParam( $param_hashref ); #From parametric description
$binIndi2->Fitness( 3.5 ); #Sets or gets fitness
my $emptyIndi = new Algorithm::Evolutionary::Individual::Base;
Base class for individuals, that is, chromosomes in evolutionary
computation algorithms. However, chromosomes neednt be bitstrings, so
the name is a bit misleading. This is, however, an empty base class,
that acts as a boilerplate for deriving others.
Creates methods for instance variables automatically
new( CW$options )
Creates a new Base individual of the required class, with a fitness, and sets fitnes to undef.
Takes as params a hash to the options of the individual, that will be passed
on to the object of the class when it iss initialized.
create( CW$ref_to_hash )
Creates a new individual, but uses a different interface: takes a
ref-to-hash, with named parameters, which gives it a common interface
to all the hierarchy. The main difference with respect to new is that
after creation, it is initialized with random values.
set( CW$ref_to_hash )
Sets values of an individual; takes a hash as input. Keys are prepended an
underscore and turn into instance variables
Prints it as YAML.
Prints it as a string in the most meaningful representation possible
as_string_with_fitness( [$separator] )
Prints it as a string followed by fitness. Separator by default is ;
Atom( CW$index [, CW$value )
Sets or gets the value of an atom. Each individual is divided in atoms, which
can be accessed sequentially. If that does not apply, Atom can simply return the
Fitness( [$value] )
Sets or gets fitness
Operators that can act on this data structure. Returns an array with the names of the known operators
evaluate( CW$fitness )
Evaluates using the $fitness thingy given. Can be a Algorithm::Evolutionary::Fitness::Base object or a ref-to-sub
Sets or gets the chromosome itself, that is, the data
structure evolved. Since each derived class has its own
data structure, and its own name, it is left to them to return
OK, OK, this is utter inconsistence, but Ill re-consistence it
eventually. Returns a meaningful size; but should be reimplemented
There are others, but Im not so sure they work.
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
|perl v5.20.3 ||ALGORITHM::EVOLUTIONARY::INDIVIDUAL::BASE (3) ||2014-10-31 |
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