def test_sum_first_half_of_first_bin():
# test sum at point between min and first bin value
# https://github.com/carsonfarmer/streamhist/issues/13
h = StreamHist(maxbins=5)
h.update((1, 2, 3, 4, 5, .5))
assert h.min() == 0.5
bin0 = h.bins[0]
assert bin0.value == 0.75
assert bin0.count == 2
assert h.sum(h.min()) == 0
assert h.sum((h.min() + bin0.value) / 2) == (.5**2) * bin0.count / 2
def test_freeze():
points = 100000
h = StreamHist(freeze=500)
for p in make_normal(points):
h.update(p)
assert about(h.sum(0), points / 2.0, points / 50.0)
assert about(h.median(), 0, 0.05)
assert about(h.mean(), 0, 0.05)
assert about(h.var(), 1, 0.05)
def test_freeze():
points = 100000
h = StreamHist(freeze=500)
for p in make_normal(points):
h.update(p)
assert about(h.sum(0), points/2.0, points/50.0)
assert about(h.median(), 0, 0.05)
assert about(h.mean(), 0, 0.05)
assert about(h.var(), 1, 0.05)
def test_cdf_pdf():
points = 10000
h = StreamHist()
data = make_normal(points)
h.update(data)
assert about(h.sum(0), points / 2.0, points / 50.0)
def test_sum_edges():
h = StreamHist().update(0).update(10)
assert h.sum(5) == 1
assert h.sum(0) == 0.5
assert h.sum(10) == 2
def test_cdf_pdf():
points = 10000
h = StreamHist()
data = make_normal(points)
h.update(data)
assert about(h.sum(0), points/2.0, points/50.0)
def test_sum_edges():
h = StreamHist().update(0).update(10)
assert h.sum(5) == 1
assert h.sum(0) == 0.5
assert h.sum(10) == 2
