OnePointCrossover (Apache Commons Math 3.6.1 API)

java.lang.Object
- org.apache.commons.math3.genetics.OnePointCrossover<T>

Type Parameters:: T - generic type of the AbstractListChromosomes for crossover

All Implemented Interfaces:: CrossoverPolicy

public class OnePointCrossover<T>
extends Object
implements CrossoverPolicy

One point crossover policy. A random crossover point is selected and the first part from each parent is copied to the corresponding child, and the second parts are copied crosswise. Example:

 -C- denotes a crossover point
                   -C-                                 -C-
 p1 = (1 0 1 0 0 1  | 0 1 1)    X    p2 = (0 1 1 0 1 0  | 1 1 1)
      \------------/ \-----/              \------------/ \-----/
            ||         (*)                       ||        (**)
            VV         (**)                      VV        (*)
      /------------\ /-----\              /------------\ /-----\
 c1 = (1 0 1 0 0 1  | 1 1 1)    X    c2 = (0 1 1 0 1 0  | 0 1 1)

This policy works only on AbstractListChromosome, and therefore it is parameterized by T. Moreover, the chromosomes must have same lengths.

Since:: 2.0

- Constructor Summary
  
  Constructors
  Constructor and Description
  
  OnePointCrossover()
- Method Summary
  
  Methods
  Modifier and Type Method and Description
  
  ChromosomePair crossover(Chromosome first, Chromosome second)
  Performs one point crossover.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructors
Constructor and Description
`OnePointCrossover()`

Methods
Modifier and Type	Method and Description
`ChromosomePair`	`crossover(Chromosome first, Chromosome second)` Performs one point crossover.

Constructor Detail
- OnePointCrossover
```
public OnePointCrossover()
```

Method Detail

crossover

public ChromosomePair crossover(Chromosome first,
                       Chromosome second)
                         throws DimensionMismatchException,
                                MathIllegalArgumentException

Performs one point crossover. A random crossover point is selected and the first part from each parent is copied to the corresponding child, and the second parts are copied crosswise. Example:

 -C- denotes a crossover point
                   -C-                                 -C-
 p1 = (1 0 1 0 0 1  | 0 1 1)    X    p2 = (0 1 1 0 1 0  | 1 1 1)
      \------------/ \-----/              \------------/ \-----/
            ||         (*)                       ||        (**)
            VV         (**)                      VV        (*)
      /------------\ /-----\              /------------\ /-----\
 c1 = (1 0 1 0 0 1  | 1 1 1)    X    c2 = (0 1 1 0 1 0  | 0 1 1)

Specified by:: crossover in interface CrossoverPolicy
Parameters:: first - first parent (p1); second - second parent (p2)
Returns:: pair of two children (c1,c2)
Throws:: MathIllegalArgumentException - iff one of the chromosomes is not an instance of AbstractListChromosome; DimensionMismatchException - if the length of the two chromosomes is different

Class OnePointCrossover<T>

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

OnePointCrossover

Method Detail

crossover