def test_trimmed_mean_negative(self):
td = TDigest()
for i in range(100):
td.update(random.random())
for i in range(10):
td.update(i*100)
mean = td.trimmed_mean(1, 99)
assert mean >= 0
def test_data_comes_in_sorted_does_not_blow_up(self, empty_tdigest):
t = TDigest()
for x in range(10000):
t.update(x, 1)
assert len(t) < 5000
t = TDigest()
t.batch_update(range(10000))
assert len(t) < 1000
def test_data_comes_in_sorted_does_not_blow_up(self, empty_tdigest):
t = TDigest()
for x in range(10000):
t.update(x,1)
assert len(t) < 5000
t = TDigest()
t.batch_update(range(10000))
assert len(t) < 1000
def test_trimmed_mean_corner_cases(self):
td = TDigest()
mean = td.trimmed_mean(0, 100)
assert mean == 0
td.update(1)
mean = td.trimmed_mean(0, 100)
assert mean == 1
td.update(1000)
mean = td.trimmed_mean(0, 100)
assert mean == 500.5