Evolvica Core API Version 0.6.2
Last Modified: June 29 2004

org.evolvica.core.mutate.Float
Class StepMutator

java.lang.Object
  extended byorg.evolvica.engine.AbstractOperator
      extended byorg.evolvica.core.common.AbstractGeneticOperator
          extended byorg.evolvica.core.mutate.AbstractMutator
              extended byorg.evolvica.core.mutate.Float.FloatMutator
                  extended byorg.evolvica.core.mutate.Float.StepMutator
All Implemented Interfaces:
IGeneticOperator, IOperator, IProcessor, java.io.Serializable

public class StepMutator
extends FloatMutator

Mutation of an float number with a maximal stepsize. This operator will add a random float number within the range from 0 to a given float number. The given number can be either positive or negative.
The mutated value = value + random( 0, stepSize )

Since:
0.4.0
Version:
$Revision: 1.7 $ $Date: 2004/05/26 11:58:08 $
Author:
Andreas Rummler
See Also:
Serialized Form

Field Summary
protected  float stepSize
          Step size.
 
Fields inherited from class org.evolvica.core.mutate.AbstractMutator
propability
 
Fields inherited from class org.evolvica.engine.AbstractOperator
descriptor, element, id, name
 
Constructor Summary
StepMutator()
          Constructor.
StepMutator(float stepSize)
          Constructor with mutation step size.
 
Method Summary
 float getStepSize()
          Returns the step size.
 float mutate(float value)
          Mutates a float value.
 void setStepSize(float i)
          Sets a new value for the step size.
 
Methods inherited from class org.evolvica.core.mutate.Float.FloatMutator
mutate
 
Methods inherited from class org.evolvica.core.mutate.AbstractMutator
getPropability, process, setPropability
 
Methods inherited from class org.evolvica.engine.AbstractOperator
attachDescriptor, attachElement, descriptor, element, getId, getName, setId, setName
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface org.evolvica.engine.IOperator
attachDescriptor, attachElement, descriptor, element, getId, getName, setId, setName
 

Field Detail

stepSize

protected float stepSize
Step size.

Constructor Detail

StepMutator

public StepMutator()
Constructor. The mutation step size is set to 10.0.


StepMutator

public StepMutator(float stepSize)
Constructor with mutation step size.

Parameters:
stepSize - mutation step size
Method Detail

mutate

public float mutate(float value)
Description copied from class: FloatMutator
Mutates a float value.

Specified by:
mutate in class FloatMutator
Parameters:
value - the value to be mutated
Returns:
the mutated value
See Also:
FloatMutator.mutate(float)

getStepSize

public float getStepSize()
Returns the step size.

Returns:
step size

setStepSize

public void setStepSize(float i)
Sets a new value for the step size.

Parameters:
i - new value for the step size

Evolvica Core API Version 0.6.2
Last Modified: June 29 2004

Copyright © 2000-2004 Technical University of Ilmenau, Department Electronic Circuits and Systems