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Rewrote for clarity and potential bug

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SimpleArt
2020-11-12 18:00:22 -05:00
parent ef5f87cbc6
commit aa677a1d81
1 changed files with 15 additions and 11 deletions
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26
src/survivor_selection/survivor_selection_methods.py
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@ -6,33 +6,37 @@ class Survivor_Selection:
def fill_in_best(ga):
"""Fills in the next population with the best chromosomes from the last population"""
# add in chromosomes starting from
# the first chromosome in the population
# until the next population is full
needed_amount = ga.population.size()-len(ga.population.next_population)
ga.population.append_children(
ga.population.get_chromosome_list()[:ga.population.size()-len(ga.population.next_population)]
ga.population.get_chromosome_list()[:needed_amount]
)
def fill_in_random(ga):
"""Fills in the next population with random chromosomes from the last population"""
needed_amount = ga.population.size()-ga.population.total_children()
ga.population.append_children([ # add in chromosomes
random.choice( # randomly
ga.population.get_chromosome_list() # from the population
) # until the next population is full
for n in range(ga.population.size()-ga.population.total_children())])
) #
for n in range(needed_amount)]) # until the next population is full
def fill_in_parents_then_random(ga):
"""Fills in the next population with all parents followed by random chromosomes from the last population"""
ga.population.append_children( # add in chromosomes
ga.population.get_mating_pool() # from the mating pool
) #
needed_amount = ga.population.size()-ga.population.total_children()
parent_amount = max(len(ga.population.get_mating_pool()), needed_amount)
random_amount = needed_amount - parent_amount
ga.population.append_children( # add in chromosomes
ga.population.get_mating_pool()[:parent_amount] # from the mating pool
) #
ga.population.append_children([ # add in chromosomes
random.choice( # randomly
ga.population.get_chromosome_list() # from the population
) # until the next population is full
for n in range(ga.population.size()-ga.population.total_children())])
) #
for n in range(random_amount)]) # until the next population is full