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java.lang.Object org.jgap.Chromosome
public class Chromosome
Chromosomes represent potential solutions and consist of a fixed-length collection of genes. Each gene represents a discrete part of the solution. Each gene in the Chromosome may be backed by a different concrete implementation of the Gene interface, but all genes with the same innovation ID must share the same concrete implementation across Chromosomes within a single population (genotype).
Field Summary | |
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static java.lang.Long |
DEFAULT_ID
default ID |
protected int |
m_fitnessValue
Stores the fitness value of this Chromosome as determined by the active fitness function. |
protected boolean |
m_isSelectedForNextGeneration
Keeps track of whether or not this Chromosome has been selected by the natural selector to move on to the next generation. |
Constructor Summary | |
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Chromosome(ChromosomeMaterial a_material,
java.lang.Long an_id)
this should only be called when a chromosome is being created from persistence; otherwise, the ID should be generated by a_activeConfiguration . |
Method Summary | |
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ChromosomeMaterial |
cloneMaterial()
|
int |
compareTo(java.lang.Object o)
Compares the given Chromosome to this Chromosome. |
double |
distance(Chromosome target,
SpeciationParms parms)
Calculates compatibility distance between this and target according to NEAT speciation
methodology. |
boolean |
equals(java.lang.Object other)
Compares this Chromosome against the specified object. |
Allele |
findMatchingGene(Allele alleleToMatch)
|
java.util.SortedSet |
getAlleles()
|
int |
getFitnessValue()
Retrieves the fitness value of this Chromosome, as determined by the active fitness function. |
java.lang.Long |
getId()
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java.lang.Long |
getPrimaryParentId()
|
java.lang.Long |
getSecondaryParentId()
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int |
getSpeciatedFitnessValue()
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Specie |
getSpecie()
|
int |
hashCode()
Retrieve a hash code for this Chromosome. |
boolean |
isSelectedForNextGeneration()
Retrieves whether this Chromosome has been selected by the natural selector to continue to the next generation. |
void |
setFitnessValue(int a_newFitnessValue)
Sets the fitness value of this Chromosome. |
void |
setIsSelectedForNextGeneration(boolean a_isSelected)
Sets whether this Chromosome has been selected by the natural selector to continue to the next generation. |
int |
size()
Returns the size of this Chromosome (the number of alleles it contains). |
java.lang.String |
toString()
Returns a string representation of this Chromosome, useful for some display purposes. |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static final java.lang.Long DEFAULT_ID
protected boolean m_isSelectedForNextGeneration
protected int m_fitnessValue
Constructor Detail |
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public Chromosome(ChromosomeMaterial a_material, java.lang.Long an_id)
a_activeConfiguration
.
a_material
- Genetic material to be contained within this Chromosome instance.an_id
- unique ID of new chromosomeMethod Detail |
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public double distance(Chromosome target, SpeciationParms parms)
target
according to NEAT speciation
methodology. It is generic enough that the alleles do not have to be nodes and connections.
target
- parms
-
target
ChromosomeMaterial.distance(ChromosomeMaterial, SpeciationParms)
public java.lang.Long getId()
hashCode()
and
persistencepublic int size()
public ChromosomeMaterial cloneMaterial()
public java.util.SortedSet getAlleles()
public Allele findMatchingGene(Allele alleleToMatch)
alleleToMatch
-
geneToMatch
null if none matchpublic int getFitnessValue()
public int getSpeciatedFitnessValue()
public void setFitnessValue(int a_newFitnessValue)
a_newFitnessValue
- a positive integer representing the fitness of this Chromosome. if
0, fitness is set as 1.public java.lang.String toString()
toString
in class java.lang.Object
public boolean equals(java.lang.Object other)
equals
in class java.lang.Object
other
- The object to compare against.
public int hashCode()
hashCode
in class java.lang.Object
public int compareTo(java.lang.Object o)
compareTo
in interface java.lang.Comparable
o
- The Chromosome against which to compare this chromosome.
public void setIsSelectedForNextGeneration(boolean a_isSelected)
a_isSelected
- true if this Chromosome has been selected, false otherwise.public boolean isSelectedForNextGeneration()
public Specie getSpecie()
public java.lang.Long getPrimaryParentId()
public java.lang.Long getSecondaryParentId()
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