gaft.plugin_interfaces.operators¶

Module for Genetic Algorithm selection operator class

class gaft.plugin_interfaces.operators.selection.Selection¶

Class for providing an interface to easily extend the behavior of selection operation.

select(population, fitness)¶

Called when we need to select parents from a population to later breeding.

Parameters:	population (gaft.compoenents.Population) – The current population
Return parents:	Two selected individuals for crossover

Module for Genetic Algorithm crossover operator class

class gaft.plugin_interfaces.operators.crossover.Crossover¶

Class for providing an interface to easily extend the behavior of crossover operation between two individuals for children breeding.

Attributes:

pc(float): The probability of crossover (usaully between 0.25 ~ 1.0)

cross(father, mother)¶

Called when we need to cross parents to generate children.

Return children:
Parameters:	father (gaft.components.IndividualBase) – The parent individual to be crossed mother (gaft.components.IndividualBase) – The parent individual to be crossed
	Two new children individuals

Module for Genetic Algorithm mutation operator class

class gaft.plugin_interfaces.operators.mutation.Mutation¶

Class for providing an interface to easily extend the behavior of selection operation.

Attributes:

pm(float): Default mutation probability, default is 0.1

mutate(individual, engine)¶

Called when an individual to be mutated.

Parameters:	individual (gaft.components.IndividualBase) – The individual to be mutated engine (gaft.engine.GAEngine) – The GA engine where the mutation operator belongs.