eaLib API Docs
Last Modified : January 7 2002

mss.ea.mut
Class IntegerStepMutation

java.lang.Object
  |
  +--mss.ea.core.GeneticOperator
        |
        +--mss.ea.mut.Mutation
              |
              +--mss.ea.mut.ChromosomeMutation
                    |
                    +--mss.ea.mut.IntegerMutation
                          |
                          +--mss.ea.mut.IntegerStepMutation

public class IntegerStepMutation
extends IntegerMutation

Mutation of an integer number with a maximal stepsize. This operator will add a random integer number within the range from 0 to a given integer number. The given number can be either positive or negative.

Since:
0.1
Version:
0.1 (12-05-00)
Author:
Andreas Rummler

Field Summary
protected  int step
           
 
Fields inherited from class mss.ea.mut.IntegerMutation
rand
 
Fields inherited from class mss.ea.mut.ChromosomeMutation
mutationPropability
 
Fields inherited from class mss.ea.core.GeneticOperator
description, ID, name
 
Constructor Summary
IntegerStepMutation()
          Constructor.
IntegerStepMutation(float propability)
          Constructor with mutation propability.
IntegerStepMutation(float propability, int stepsize)
          Constructor with mutation propability and mutation step size.
 
Method Summary
 void mutate(Chromosome cr)
          Performs the mutation.
 
Methods inherited from class mss.ea.core.GeneticOperator
getDescription, getID, getName, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

step

protected int step
Constructor Detail

IntegerStepMutation

public IntegerStepMutation()
Constructor. The mutation propability is set to 0.05 and the mutation step size is set to 10.

IntegerStepMutation

public IntegerStepMutation(float propability)
Constructor with mutation propability. The mutation step size is set to 10.
Parameters:
propability - mutation propability

IntegerStepMutation

public IntegerStepMutation(float propability,
                           int stepsize)
Constructor with mutation propability and mutation step size.
Parameters:
propability - mutation propability
step - mutation step size
Method Detail

mutate

public void mutate(Chromosome cr)
            throws MutationException
Performs the mutation.
Overrides:
mutate in class ChromosomeMutation
Parameters:
cr - chromosome of type IntegerChromosome
Throws:
MutationException - thrown, if operator fails

eaLib API Docs
Last Modified : January 7 2002

Copyright © 2000-2001 Technical University of Ilmenau, Department ESS