Crossovers – crossover methods module

In this module we have the genetic operators of crossover (or recombination) for each chromosome representation.

Crossovers.G1DBinaryStringXSinglePoint(genome, **args)

The crossover of 1D Binary String, Single Point

Warning

You can’t use this crossover method for binary strings with length of 1.

Crossovers.G1DBinaryStringXTwoPoint(genome, **args)

The 1D Binary String crossover, Two Point

Warning

You can’t use this crossover method for binary strings with length of 1.

Crossovers.G1DBinaryStringXUniform(genome, **args)

The G1DList Uniform Crossover

Crossovers.G1DListCrossoverCutCrossfill(genome, **args)

The crossover of G1DList, Cut and crossfill, for permutations

Crossovers.G1DListCrossoverEdge(genome, **args)

THe Edge Recombination crossover for G1DList (widely used for TSP problem)

See more information in the Edge Recombination Operator Wikipedia entry.

Crossovers.G1DListCrossoverOX(genome, **args)

The OX Crossover for G1DList (order crossover)

Crossovers.G1DListCrossoverRealSBX(genome, **args)

Experimental SBX Implementation - Follows the implementation in NSGA-II (Deb, et.al)

Some implementation reference.

Warning

This crossover method is Data Type Dependent, which means that must be used for 1D genome of real values.

Crossovers.G1DListCrossoverSinglePoint(genome, **args)

The crossover of G1DList, Single Point

Warning

You can’t use this crossover method for lists with just one element.

Crossovers.G1DListCrossoverTwoPoint(genome, **args)

The G1DList crossover, Two Point

Warning

You can’t use this crossover method for lists with just one element.

Crossovers.G1DListCrossoverUniform(genome, **args)

The G1DList Uniform Crossover

Crossovers.G2DBinaryStringXSingleHPoint(genome, **args)

The crossover of G2DBinaryString, Single Horizontal Point

New in version 0.6: The G2DBinaryStringXSingleHPoint function

Crossovers.G2DBinaryStringXSingleVPoint(genome, **args)

The crossover of G2DBinaryString, Single Vertical Point

New in version 0.6: The G2DBinaryStringXSingleVPoint function

Crossovers.G2DBinaryStringXUniform(genome, **args)

The G2DBinaryString Uniform Crossover

New in version 0.6: The G2DBinaryStringXUniform function

Crossovers.G2DListCrossoverSingleHPoint(genome, **args)

The crossover of G2DList, Single Horizontal Point

Crossovers.G2DListCrossoverSingleVPoint(genome, **args)

The crossover of G2DList, Single Vertical Point

Crossovers.G2DListCrossoverUniform(genome, **args)

The G2DList Uniform Crossover

Crossovers.GTreeCrossoverSinglePoint(genome, **args)

The crossover for GTree, Single Point

Crossovers.GTreeCrossoverSinglePointStrict(genome, **args)

The crossover of Tree, Strict Single Point

..note:: This crossover method creates offspring with restriction of the

max_depth parameter.

Accepts the max_attempt parameter, max_depth (required), and the distr_leaft (>= 0.0 and <= 1.0), which represents the probability of leaf selection when findin random nodes for crossover.

Crossovers.GTreeGPCrossoverSinglePoint(genome, **args)

The crossover of the GTreeGP, Single Point for Genetic Programming

..note:: This crossover method creates offspring with restriction of the

max_depth parameter.

Accepts the max_attempt parameter, max_depth (required).

Crossovers.rand_random()

random() -> x in the interval [0, 1).