def test_mixture_ppf():
# Make a mixtures with known properties. The median should be 10 for this mixture.
logistic_params = np.array([[15, 2.3658268, 0.5], [5, 2.3658268, 0.5]])
mixture = LogisticMixture.from_params(logistic_params)
ppf5 = mixture.ppf(0.5)
assert ppf5 == pytest.approx(10, rel=1e-3)
def test_mixture_cdf():
# Make a mixture with known properties. The median should be 15 for this mixture.
logistic_params = np.array([[10, 3.658268, 0.5], [20, 3.658268, 0.5]])
mixture = LogisticMixture.from_params(logistic_params)
cdf50 = mixture.cdf(15)
assert cdf50 == pytest.approx(0.5, rel=1e-3)
