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SimpleArt
2020-11-07 18:35:57 -05:00
parent a49ceda93c
commit 874f4362fa
1 changed files with 9 additions and 7 deletions
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14
src/EasyGA.py
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@ -104,20 +104,22 @@ class GA(Attributes):
for chromosome in self.population.get_chromosome_list(): for chromosome in self.population.get_chromosome_list():
# Update fitness if needed or asked by the user # Update fitness if needed or asked by the user
if(chromosome.get_fitness() is None or self.update_fitness): if chromosome.get_fitness() is None or self.update_fitness:
chromosome.set_fitness(self.fitness_function_impl(chromosome)) chromosome.set_fitness(self.fitness_function_impl(chromosome))
def sort_by_best_fitness(self, chromosome_set): def sort_by_best_fitness(self, chromosome_set):
"""Sorts the array by fitness. """Sorts the array by fitness based on fitness type.
1st element has highest fitness. 1st element has best fitness.
2nd element has second highest fitness. 2nd element has second best fitness.
etc. etc.
""" """
return sorted(chromosome_set, # list to be sorted return sorted(
chromosome_set, # list to be sorted
key = lambda chromosome: chromosome.get_fitness(), # by fitness key = lambda chromosome: chromosome.get_fitness(), # by fitness
reverse = (self.target_fitness_type == 'max')) # from highest to lowest fitness reverse = (self.target_fitness_type == 'max') # ordered by fitness type
)
def get_chromosome_fitness(self, index): def get_chromosome_fitness(self, index):