alogos.systems.ge.crossover

Crossover functions for GE.

Functions

two_point_length_preserving(grammar, genotype1, genotype2, parameters=None)

Generate new GE genotypes by exchanging sequence parts.

Detailed object descriptions

alogos.systems.ge.crossover.two_point_length_preserving(grammar, genotype1, genotype2, parameters=None)[source]

Generate new GE genotypes by exchanging sequence parts.

Select two random, but equally long subsequences in the two GE genotypes and exchange them.

Parameters:

  • grammar (Grammar)

  • genotype1 (Genotype) – Genotype of the first parent.

  • genotype2 (Genotype) – Genotype of the second parent.

  • parameters (dict or ParameterCollection, optional) – No keyword-value pairs are considered by this function. This argument is only available to have a consistent interface.

Returns:

  • genotype1 (Genotype) – Genotype of the first child.

  • genotype2 (Genotype) – Genotype of the second child.