orbital.algorithm.evolutionary
Class Gene.Number

java.lang.Object
  java.lang.Number
      orbital.algorithm.evolutionary.Gene.Number

All Implemented Interfaces:

java.io.Serializable, Gene

Direct Known Subclasses:

Gene.Float, Gene.Integer

Enclosing interface:

Gene

public abstract static class Gene.Number
extends java.lang.Number
implements Gene, java.io.Serializable

Numeric gene data.

This class is the base class for gene data with a numeric interpretation.

Note however, that all numeric genes could as well be encoded with a mere bit string. Although default uniform mutations and recombination would then have a dramatic effect on these bit string encoded values. This is the reason for introducing explicit genes with numeric interpretations.

Author:

André Platzer

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface orbital.algorithm.evolutionary.Gene

Gene.BitSet, Gene.BoundedFloat, Gene.BoundedInteger, Gene.Fixed, Gene.Float, Gene.Integer, Gene.List, Gene.Number

Constructor Summary

Gene.Number()

Method Summary

abstract java.lang.Object	clone() Returns a clone of this gene.
Metric	distanceMeasure() Get the distance measure for this class.
boolean	equals(java.lang.Object o) Checks two gene numbers for equality according to their doubleValue.
float	floatValue()
int	hashCode() Calculates a hash code according to the doubleValue.
int	intValue()
Gene	inverse() Get an inverted version of this Gene.
long	longValue()
Gene	mutate(double probability) Get a mutated version of this Gene.
java.lang.String	toString()

Methods inherited from class java.lang.Number

byteValue, doubleValue, shortValue

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface orbital.algorithm.evolutionary.Gene

get, recombine, set

Constructor Detail

Gene.Number

public Gene.Number()

Method Detail

clone

public abstract java.lang.Object clone()

Description copied from interface: Gene

Returns a clone of this gene.

Specified by:

clone in interface Gene

Overrides:

clone in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Checks two gene numbers for equality according to their doubleValue.

Specified by:

equals in interface Gene

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Calculates a hash code according to the doubleValue.

Specified by:

hashCode in interface Gene

Overrides:

hashCode in class java.lang.Object

intValue

public int intValue()

Specified by:

intValue in class java.lang.Number

longValue

public long longValue()

Specified by:

longValue in class java.lang.Number

floatValue

public float floatValue()

Specified by:

floatValue in class java.lang.Number

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

inverse

public Gene inverse()

Description copied from interface: Gene

Get an inverted version of this Gene.

Used in Population.create(Population, Genome, int) to form a balanced and least biased initial population.

Specified by:

inverse in interface Gene

Returns:

the complementary inverted Gene.

mutate

public Gene mutate(double probability)

Description copied from interface: Gene

Get a mutated version of this Gene.

Specified by:

mutate in interface Gene

Parameters:

probability - the probability rating of mutation level. f.ex. probability with that each bit of the Gene mutates.

Returns:

a new gene that is a mutation of this one.

distanceMeasure

public Metric distanceMeasure()

Description copied from interface: Gene

Get the distance measure for this class.

Used to determine how different two genes are.

Specified by:

distanceMeasure in interface Gene

Returns:

a distance measure whose deviation is 1 such that it can easily be used as a measure for similarity. Additionally, only positive numbers should be returned. So this distance measure only has values in [0,1].