def test_c_entry_is_summand_over_doubled_squared_sigma_when_only_one_relevant_comparison(self):
res = c_m_n(
f=self.default_f,
m=0,
n=2,
comparisons=a([
[0, 2],
]),
sigma=self.default_sigma,
)
self.assertAlmostEqual(res, -.250644809 / 8.0)
def test_c_entry_with_two_constrasting_comparisons(self):
res = c_m_n(
f=self.default_f,
m=0,
n=2,
comparisons=a([
[0, 2],
[2, 0],
]),
sigma=self.default_sigma,
)
self.assertAlmostEqual(res, -.136719008)
def test_c_entry_doubles_with_two_positive_comparisons_where_m_and_n_are_same(self):
res = c_m_n(
f=self.default_f,
m=0,
n=0,
comparisons=a([
[0, 2],
[0, 2],
]),
sigma=self.default_sigma,
)
self.assertAlmostEqual(res, .501289618 / 8.0)
def test_c_entry_zero_if_no_relevant_comparisons(self):
res = c_m_n(
f=self.default_f,
m=0,
n=2,
comparisons=a([
[1, 1],
[1, 1],
[1, 1],
]),
sigma=self.default_sigma,
)
self.assertAlmostEqual(res, 0.0)