def testZScorelistReturnList(self):
list = [1, 2, 3, 4, 5]
stat = Statistics(list)
actual = stat.zscore()
expected = {
1: -1.414213562373095,
2: -0.7071067811865475,
3: 0.0,
4: 0.7071067811865475,
5: 1.414213562373095
}
self.assertEqual(expected, actual)
def testZScoreSameValuelistReturnList(self):
list = [1, 1, 1, 1, 1]
stat = Statistics(list)
actual = stat.zscore()
expected = None
self.assertEqual(expected, actual)
def testZScoreOneValuelistReturnList(self):
list = [1]
stat = Statistics(list)
actual = stat.zscore()
expected = {1: 0}
self.assertEqual(expected, actual)
def testZScoreEmptyListReturnNone(self):
emptylist = []
stat = Statistics(emptylist)
actual = stat.zscore()
expected = None
self.assertEqual(expected, actual)
