eaLib API Docs
Last Modified : January 7 2002

mss.ea.mut
Class LongStepMutation

java.lang.Object
  |
  +--mss.ea.core.GeneticOperator
        |
        +--mss.ea.mut.Mutation
              |
              +--mss.ea.mut.ChromosomeMutation
                    |
                    +--mss.ea.mut.LongMutation
                          |
                          +--mss.ea.mut.LongStepMutation

public class LongStepMutation
extends LongMutation

Mutation of an long number with a maximal stepsize. This operator will add a random long number within the range from 0 to a given long 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  long step
           
 
Fields inherited from class mss.ea.mut.LongMutation
rand
 
Fields inherited from class mss.ea.mut.ChromosomeMutation
mutationPropability
 
Fields inherited from class mss.ea.core.GeneticOperator
description, ID, name
 
Constructor Summary
LongStepMutation()
          Constructor.
LongStepMutation(float propability)
          Constructor with mutation propability.
LongStepMutation(float propability, long 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 long step
Constructor Detail

LongStepMutation

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

LongStepMutation

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

LongStepMutation

public LongStepMutation(float propability,
                        long 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 LongChromosome
Throws:
MutationException - thrown, if operator fails

eaLib API Docs
Last Modified : January 7 2002

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