GaussianMutator (Jenetics 6.2.0)

java.lang.Object
- io.jenetics.AbstractAlterer<G,C>
- - io.jenetics.Mutator<G,C>
  - - io.jenetics.GaussianMutator<G,C>

All Implemented Interfaces:

Alterer<G,C>
```
public class GaussianMutator<G extends NumericGene<?,G>,C extends Comparable<? super C>>
extends Mutator<G,C>
```
The GaussianMutator class performs the mutation of a NumericGene. This mutator picks a new value based on a Gaussian distribution around the current value of the gene. The variance of the new value (before clipping to the allowed gene range) will be
$\hat{\sigma }^2 = \left ( \frac{ g_{max} - g_{min} }{4}\right )^2$
The new value will be cropped to the gene's boundaries.

Since:

1.0

Version:

6.1

- Field Summary
  - Fields inherited from class io.jenetics.AbstractAlterer
    _probability
  - Fields inherited from interface io.jenetics.Alterer
    DEFAULT_ALTER_PROBABILITY
- Constructor Summary
  
  Constructors
  Constructor Description
  
  GaussianMutator()
  
  GaussianMutator(double probability)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  protected G mutate(G gene, Random random)
  Mutates the given gene.
  
  String toString()
  - Methods inherited from class io.jenetics.Mutator
    alter, mutate, mutate, mutate
  - Methods inherited from class io.jenetics.AbstractAlterer
    probability
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
  - Methods inherited from interface io.jenetics.Alterer
    andThen, compose

- Constructor Detail
  - GaussianMutator
```
public GaussianMutator(double probability)
```
  - GaussianMutator
```
public GaussianMutator()
```
- Method Detail
  - mutate
```
protected G mutate(G gene,
                   Random random)
```
    Description copied from class: Mutator
    
    Mutates the given gene.
    
    Overrides:
    
    mutate in class Mutator<G extends NumericGene<?,G>,C extends Comparable<? super C>>
    
    Parameters:
    
    gene - the gene to mutate
    
    random - the random engine used for the genotype mutation
    
    Returns:
    
    the mutation result
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Mutator<G extends NumericGene<?,G>,C extends Comparable<? super C>>