def test_normal_pdf_with_sigma_zero_point_five(self):
"""probability -- normal pdf with sigma of 0.5"""
result = [probability.normal_pdf(x, sigma=0.5) for x in self.xs]
expected = [
0.10798193302637613, 0.1579003166017883, 0.2218416693589111,
0.29945493127148975, 0.38837210996642596, 0.48394144903828673,
0.5793831055229655, 0.6664492057835993, 0.7365402806066467,
0.7820853879509118, 0.7978845608028654, 0.7820853879509118,
0.7365402806066467, 0.6664492057835993, 0.5793831055229655,
0.48394144903828673, 0.38837210996642596, 0.29945493127148975,
0.2218416693589111, 0.1579003166017883
]
self.assertEqual(expected, result)
def test_normal_pdf_with_sigma_1(self):
"""probability -- normal pdf with sigma of 1"""
result = [probability.normal_pdf(x, sigma=1) for x in self.xs]
expected = [
0.24197072451914337, 0.2660852498987548, 0.28969155276148273,
0.31225393336676127, 0.33322460289179967, 0.3520653267642995,
0.36827014030332333, 0.38138781546052414, 0.3910426939754559,
0.3969525474770118, 0.3989422804014327, 0.3969525474770118,
0.3910426939754559, 0.38138781546052414, 0.36827014030332333,
0.3520653267642995, 0.33322460289179967, 0.31225393336676127,
0.28969155276148273, 0.2660852498987548
]
self.assertEqual(expected, result)
def test_normal_pdf_with_sigma_zero_point_five(self):
"""probability -- normal pdf with sigma of 0.5"""
result = [probability.normal_pdf(x, sigma=0.5) for x in self.xs]
expected = [0.10798193302637613,
0.1579003166017883,
0.2218416693589111,
0.29945493127148975,
0.38837210996642596,
0.48394144903828673,
0.5793831055229655,
0.6664492057835993,
0.7365402806066467,
0.7820853879509118,
0.7978845608028654,
0.7820853879509118,
0.7365402806066467,
0.6664492057835993,
0.5793831055229655,
0.48394144903828673,
0.38837210996642596,
0.29945493127148975,
0.2218416693589111,
0.1579003166017883]
self.assertEqual(expected, result)
def test_normal_pdf_with_sigma_1(self):
"""probability -- normal pdf with sigma of 1"""
result = [probability.normal_pdf(x, sigma=1) for x in self.xs]
expected = [0.24197072451914337,
0.2660852498987548,
0.28969155276148273,
0.31225393336676127,
0.33322460289179967,
0.3520653267642995,
0.36827014030332333,
0.38138781546052414,
0.3910426939754559,
0.3969525474770118,
0.3989422804014327,
0.3969525474770118,
0.3910426939754559,
0.38138781546052414,
0.36827014030332333,
0.3520653267642995,
0.33322460289179967,
0.31225393336676127,
0.28969155276148273,
0.2660852498987548]
self.assertEqual(expected, result)