saealib.Crossover¶

class saealib.Crossover[source]¶

Bases: ABC

Base class for crossover operators.

n_parents¶

Number of parents required per crossover call. Default is 2. Subclasses may override this class attribute if they require a different number of parents.

Type:: int

n_children¶

Number of offspring produced per crossover call. Default is 2. Subclasses may override this class attribute if they produce a different number of offspring.

Type:: int

Methods

`__init__`
`crossover`	Execute crossover.

Method Details

Crossover.__init__()¶

abstract Crossover.crossover(parent, rng=Generator(PCG64) at 0x7F65E9C911C0)[source]¶

Execute crossover.

Parameters:

parent (np.ndarray) – Parent individuals. shape = (n_parents, dim)
rng (np.random.Generator, optional) – Random number generator, by default np.random.default_rng()

Returns:

Offspring individuals. shape = (n_offspring, dim)

Return type:

np.ndarray