def testStats(self):
population = [Fitness(float(x)) for x in range(1,4)]
mean, stdev, total = fitness_stats(population)
self.assertEqual(2.0, mean)
self.assertEqual(math.sqrt(2./3), stdev)
self.assertEqual(6.0, total)
def testStats(self):
population = [Fitness(float(x)) for x in range(1, 4)]
mean, stdev, total = fitness_stats(population)
self.assertEqual(2.0, mean)
self.assertEqual(math.sqrt(2. / 3), stdev)
self.assertEqual(6.0, total)
def _update_stats(self):
'''Assigns to self.mean and stdev population fitness stats'''
self.mean, self.stdev, _ = stats.fitness_stats(self)
def _update_stats(self):
'''Assigns to self.mean and stdev population fitness stats'''
self.mean, self.stdev, _ = stats.fitness_stats(self)