eaLib API Docs
Last Modified : January 7 2002

mss.ea.mut
Class DoubleRangeMutation

java.lang.Object
  |
  +--mss.ea.core.GeneticOperator
        |
        +--mss.ea.mut.Mutation
              |
              +--mss.ea.mut.ChromosomeMutation
                    |
                    +--mss.ea.mut.DoubleMutation
                          |
                          +--mss.ea.mut.DoubleRangeMutation

public class DoubleRangeMutation
extends DoubleMutation

Mutation of a double number with a mutation range. This operator will add a random double number within the given range.

Since:
0.1
Version:
0.1 (12-04-00)
Author:
Andreas Rummler

Field Summary
protected  double lowerBound
           
protected  double upperBound
           
 
Fields inherited from class mss.ea.mut.DoubleMutation
rand
 
Fields inherited from class mss.ea.mut.ChromosomeMutation
mutationPropability
 
Fields inherited from class mss.ea.core.GeneticOperator
description, ID, name
 
Constructor Summary
DoubleRangeMutation()
          Constructor.
DoubleRangeMutation(float propability)
          Constructor with mutation propability.
DoubleRangeMutation(float propability, double lowerBound, double upperBound)
          Constructor with mutation propability and mutation range.
 
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

lowerBound

protected double lowerBound

upperBound

protected double upperBound
Constructor Detail

DoubleRangeMutation

public DoubleRangeMutation()
Constructor. The mutation propability is set to 0.05 and the mutation range is set to [-1.0, 1.0].

DoubleRangeMutation

public DoubleRangeMutation(float propability)
Constructor with mutation propability. The mutation range is set to [-1.0, 1.0].
Parameters:
propability - mutation propability

DoubleRangeMutation

public DoubleRangeMutation(float propability,
                           double lowerBound,
                           double upperBound)
Constructor with mutation propability and mutation range. If lowerBound > upperBound, the mutation range is silently set to [-1.0, 1.0].
Parameters:
propability - mutation propability
lowerBound - lower bound of mutation range
upperBound - upper bound of mutation range
Method Detail

mutate

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

eaLib API Docs
Last Modified : January 7 2002

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