def test_std_dev_with_mean(self):
# Arrange
values = [0.0, 1.1, 2.2, 3.3, 4.4, 8.1, 9.9, -3.0]
mean = fast_mean(values)
# Act
result1 = fast_std(values)
result2 = fast_std_with_mean(values, mean)
# Assert
self.assertEqual(np.std(values), result1)
self.assertEqual(np.std(values), result2)
self.assertAlmostEqual(3.943665807342199, result1)
self.assertAlmostEqual(3.943665807342199, result2)
def test_std_dev_with_mean(self):
# Arrange
values = [0.0, 1.1, 2.2, 3.3, 4.4, 8.1, 9.9, -3.0]
mean = fast_mean(values)
# Act
result1 = fast_std(values)
result2 = fast_std_with_mean(values, mean)
# Assert
assert np.std(values) == result1
assert np.std(values) == result2
assert 3.943665807342199 == result1
assert 3.943665807342199 == result2
def test_std_dev_with_mean(self):
# Arrange
values = np.asarray([0.0, 1.1, 2.2, 3.3, 4.4, 8.1, 9.9, -3.0],
dtype=np.float64)
mean = fast_mean(values)
# Act
result1 = fast_std(values)
result2 = fast_std_with_mean(values, mean)
# Assert
assert result1 == np.std(values)
assert result2 == np.std(values)
assert result1 == 3.943665807342199
assert result2 == 3.943665807342199
def fast_std(self):
fast_std(self.values)