def test_reverse_cumulative(self):
histo = Histogram(n_bins=5)
hist = histo.histogram(self.data)
rev_cumulative = histo.reverse_cumulative(maximum=None)
assert_items_almost_equal(rev_cumulative.values(), [10, 5, 5, 3, 2, 1])
rev_cumulative = histo.reverse_cumulative(maximum=1.0)
assert_items_almost_equal(rev_cumulative.values(),
[1.0, 0.5, 0.5, 0.3, 0.2, 0.1])
def test_reverse_cumulative(self):
histo = Histogram(n_bins=5)
hist = histo.histogram(self.data)
rev_cumulative = histo.reverse_cumulative(maximum=None)
assert_items_almost_equal(list(rev_cumulative.values()),
[10, 5, 5, 3, 2, 1])
rev_cumulative = histo.reverse_cumulative(maximum=1.0)
assert_items_almost_equal(list(rev_cumulative.values()),
[1.0, 0.5, 0.5, 0.3, 0.2, 0.1])
def test_reverse_cumulative_all_zero_warn(self):
histo = Histogram(bin_width=0.5, bin_range=(1.0, 3.5))
histo._histogram = collections.Counter({(0,): 0, (1,): 0})
with pytest.warns(UserWarning, match=r"No non-zero"):
rcumul = histo.reverse_cumulative()
assert rcumul(3.12) == 0
for val in rcumul.values():
assert val == 0
def test_left_bin_error(self):
histo = Histogram(bin_width=0.5, bin_range=(-1.0, 3.5))
histo.histogram([3.5])
assert histo.reverse_cumulative() != 0