def testVariance(self): data = [1, 2, 3] assert stats.mean(data) == 2 self.assertEqual(stats.pvariance(data), 2/3) self.assertEqual(stats.variance(data), 1.0) self.assertEqual(stats.pstdev(data), math.sqrt(2/3)) self.assertEqual(stats.stdev(data), 1.0)
def testPStdev(self): result = stats.pstdev(self.data) expected = self.expected["pstdev"] self.assertAlmostEqual(result, expected, places=self.places)