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java.lang.Objectorg.jgap.FitnessFunction
BulkFitnessFunction
instead
Fitness functions are used to determine how optimal a particular solution is relative to other solutions. This abstract class should be extended and the evaluate() method implemented. The fitness function is given a Chromosome to evaluate and should return a positive integer that reflects its fitness value. The higher the value, the more fit the Chromosome. The actual range of fitness values isn't important (other than the fact that they must be positive integers): it's the relative difference as a percentage that tends to determine the success or failure of a Chromosome. So in other words, two Chromosomes with respective fitness values of 1 and 100 have the same relative fitness to each other as two Chromosomes with respective fitness values of 10 and 1000 (in each case, the first is 1% as fit as the second).
Note: Two Chromosomes with equivalent sets of genes should always be assigned the same fitness value by any implementation of this interface.
BulkFitnessFunction
,
Serialized FormConstructor Summary | |
FitnessFunction()
Deprecated. |
Method Summary | |
protected abstract int |
evaluate(Chromosome a_subject)
Deprecated. Determine the fitness of the given Chromosome instance. |
int |
getFitnessValue(Chromosome a_subject)
Deprecated. Retrieves the fitness value of the given Chromosome. |
int |
getMaxFitnessValue()
Deprecated. |
abstract void |
init(java.util.Properties newProps)
Deprecated. |
void |
setMaxFitnessValue(int aMaxFitnessValue)
Deprecated. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public FitnessFunction()
Method Detail |
public int getMaxFitnessValue()
public void setMaxFitnessValue(int aMaxFitnessValue)
aMaxFitnessValue
- maximum fitness that can be returned by this functionpublic abstract void init(java.util.Properties newProps)
newProps
- configuration parameterspublic final int getFitnessValue(Chromosome a_subject)
a_subject
- the Chromosome for which to compute and return the
fitness value.
protected abstract int evaluate(Chromosome a_subject)
a_subject
- The Chromosome instance to evaluate.
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