JavaGenes, NASA Ames. Written largely by Al Globus

gov.nasa.javaGenes.permutation
Class PermutationPositionCrossover

java.lang.Object
  extended bygov.nasa.javaGenes.core.ChildMaker
      extended bygov.nasa.javaGenes.permutation.PermutationChildMaker
          extended bygov.nasa.javaGenes.permutation.PermutationPositionCrossover
All Implemented Interfaces:
java.lang.Cloneable, java.io.Serializable
Direct Known Subclasses:
PositionCrossover

public class PermutationPositionCrossover
extends PermutationChildMaker

Gilbert Sysweda's position based crossover

See Also:
Serialized Form

Field Summary
 
Fields inherited from class gov.nasa.javaGenes.core.ChildMaker
cumulative, forEvolution, last
 
Constructor Summary
PermutationPositionCrossover()
           
 
Method Summary
 PermutationEvolvable crossover(PermutationEvolvable keepPositions, PermutationEvolvable keepOrder, boolean[] positions)
           
protected  boolean isIn(int value, int[] keepValues)
           
protected  boolean isPure(boolean[] array)
           
 Evolvable[] makeChildren(Evolvable[] parents)
          Defaults to mutation, any subclass wanting more than one parent must over-ride.
 int numberOfParents()
           
 java.lang.String toString()
           
 
Methods inherited from class gov.nasa.javaGenes.permutation.PermutationChildMaker
copyIndex
 
Methods inherited from class gov.nasa.javaGenes.core.ChildMaker
checkLastResults, checkResults, clearLast, getAndClearLastTabSeparatedResults, getFitnessFunctionNames, getLastTabSeparatedResults, headerFragment, makeChildren, mutate, neverUsed, proportionDown, results, setFitnessFunction, setFitnessFunctionNames, subClassMeasures, tabSeparatedResults
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

PermutationPositionCrossover

public PermutationPositionCrossover()
Method Detail

numberOfParents

public int numberOfParents()
Overrides:
numberOfParents in class ChildMaker
Returns:
the number of parents makeChildren expects. I.e., the length of the array passed to makeChildren. If not implemented by subclass, defaults to 1 (mutation).

makeChildren

public Evolvable[] makeChildren(Evolvable[] parents)
Description copied from class: ChildMaker
Defaults to mutation, any subclass wanting more than one parent must over-ride. Mutators can over-ride mutate(Evovlable)

Overrides:
makeChildren in class ChildMaker
Parameters:
parents - the evolvables from which children will be created. By convention, the parents are not modified.
Returns:
the children created. Subclass must implement copyForEvolution()

crossover

public PermutationEvolvable crossover(PermutationEvolvable keepPositions,
                                      PermutationEvolvable keepOrder,
                                      boolean[] positions)

isIn

protected boolean isIn(int value,
                       int[] keepValues)

isPure

protected boolean isPure(boolean[] array)

toString

public java.lang.String toString()
Overrides:
toString in class ChildMaker

JavaGenes, NASA Ames. Written largely by Al Globus