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java.lang.Objectorg.apache.commons.math3.genetics.OrderedCrossover<T>
T
- generic type of the AbstractListChromosome
s for crossoverpublic class OrderedCrossover<T>
Order 1 Crossover [OX1] builds offspring from ordered chromosomes by copying a consecutive slice from one parent, and filling up the remaining genes from the other parent as they appear.
This policy works by applying the following rules:
Example (random sublist from index 3 to 7, underlined):
p1 = (8 4 7 3 6 2 5 1 9 0) X c1 = (0 4 7 3 6 2 5 1 8 9) --------- --------- p2 = (0 1 2 3 4 5 6 7 8 9) X c2 = (8 1 2 3 4 5 6 7 9 0)
This policy works only on AbstractListChromosome
, and therefore it
is parameterized by T. Moreover, the chromosomes must have same lengths.
Constructor Summary | |
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OrderedCrossover()
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Method Summary | |
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ChromosomePair |
crossover(Chromosome first,
Chromosome second)
Perform a crossover operation on the given chromosomes. |
protected ChromosomePair |
mate(AbstractListChromosome<T> first,
AbstractListChromosome<T> second)
Helper for crossover(Chromosome, Chromosome) . |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public OrderedCrossover()
Method Detail |
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public ChromosomePair crossover(Chromosome first, Chromosome second) throws DimensionMismatchException, MathIllegalArgumentException
crossover
in interface CrossoverPolicy
first
- the first chromosome.second
- the second chromosome.
MathIllegalArgumentException
- iff one of the chromosomes is
not an instance of AbstractListChromosome
DimensionMismatchException
- if the length of the two chromosomes is differentprotected ChromosomePair mate(AbstractListChromosome<T> first, AbstractListChromosome<T> second) throws DimensionMismatchException
crossover(Chromosome, Chromosome)
. Performs the actual crossover.
first
- the first chromosomesecond
- the second chromosome
DimensionMismatchException
- if the length of the two chromosomes is different
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