INNER CODE UNIT · Python
_print_result
joeddav/devol · devol/devol.py:237
def _print_result(self, fitness, generation):
result_str = ('Generation {3}:\t\tbest {4}: {0:0.4f}\t\taverage:'
'{1:0.4f}\t\tstd: {2:0.4f}')
print(result_str.format(self._metric_objective(fitness),
np.mean(fitness),
np.std(fitness),
generation + 1, self._metric))
def _crossover(self, genome1, genome2):
cross_ind = rand.randint(0, len(genome1))
child = genome1[:cross_ind] + genome2[cross_ind:]
return child
def _mutate(self, genome, generation):
# increase mutations as program continues
num_mutations = max(3, generation // 4)
return self.genome_handler.mutate(genome, num_mutations)