genome.py 文件源码

def mutation(self, mutation_type):
        if mutation_type not in MUTATION_TYPES:
            raise GenomeError("mutation type not supported")
        threshold = random.uniform(self.mutation_lower_threshold, self.mutation_higher_threshold)
        if threshold < self.mutation_threshold:
            return
        if mutation_type == "add_node":
            self.mutate_add_node()
        elif mutation_type == "remove_node":
            self.mutate_remove_node()
        elif mutation_type == "add_connection":
            self.mutate_add_connection()
        elif mutation_type == "remove_connection":
            self.mutate_remove_connection()
        else:
            raise GenomeError("something wrong happened in mutation.")