def selection(population, iteration, breakPoint=50, k=3):
shape = population.individuals.shape[0]
new_population = Population(None)
new_population.individuals = np.empty(shape=shape, dtype=object)
for i in range(shape):
new_population.individuals[i] = roulette(population) if (
iteration < breakPoint) else tournament(population)
return new_population
def crossover(population, crossover_ratio=0.70):
shape = population.individuals.shape[0]
newPopulation = Population(None)
newPopulation.individuals = np.empty(shape=shape, dtype=object)
for i in range(shape):
newPopulation.individuals[i] = one_point_crossover(
population.individuals[i],
population.individuals[(i + 1) % (shape - 1)])
return newPopulation