def produce(self,
parents: Sequence[Genome],
spawner: GeneSpawner = None) -> Genome:
"""Produce a child Genome from parent Genomes and optional GenomeSpawner.
Parameters
----------
parents
A list of parent Genomes given to the operator.
spawner
A GeneSpawner that can be used to produce new genes (aka Atoms).
"""
super().produce(parents, spawner)
self.checknum_parents(parents)
new_genome = Genome()
for atom in parents[0]:
if isinstance(
atom, Literal
) and self.push_type == atom.push_type and random() < self.rate:
new_atom = self._mutate_literal(atom)
else:
new_atom = atom
new_genome = new_genome.append(new_atom)
return new_genome
def produce(self, parents: Sequence[Genome],
spawner: GeneSpawner) -> Genome:
"""Produce a child Genome from parent Genomes and optional GenomeSpawner.
Parameters
----------
parents
A list of parent Genomes given to the operator.
spawner
A GeneSpawner that can be used to produce new genes (aka Atoms).
"""
self.checknum_parents(parents)
new_genome = Genome()
for gene in parents[0]:
if random() < self.rate:
new_genome.append(spawner.spawn_atom())
new_genome.append(gene)
return new_genome
def produce(self,
parents: Sequence[Genome],
spawner: GeneSpawner = None) -> Genome:
"""Produce a child Genome from parent Genomes and optional GenomeSpawner.
Parameters
----------
parents
A list of parent Genomes given to the operator.
spawner
A GeneSpawner that can be used to produce new genes (aka Atoms).
"""
super().produce(parents, spawner)
self.checknum_parents(parents)
gn1 = parents[0]
gn2 = parents[1]
new_genome = Genome()
# Random pick which parent to start from
use_parent_1 = choice([True, False])
loop_times = len(gn1)
if not use_parent_1:
loop_times = len(gn2)
i = 0
while i < loop_times:
if random() < self.rate:
# Switch which parent we are pulling genes from
i += round(self.alignment_deviation * _gaussian_noise_factor())
i = int(max(0, i))
use_parent_1 = not use_parent_1
else:
# Pull gene from parent
if use_parent_1:
new_genome = new_genome.append(gn1[i])
else:
new_genome = new_genome.append(gn2[i])
i = int(i + 1)
# Change loop stop condition
loop_times = len(gn1)
if not use_parent_1:
loop_times = len(gn2)
return new_genome