def test_marginal_expected_cost(self):
marg_hist = dokHist(m=1)
marg_hist.upcount(0, 50)
marg_hist.upcount(0.5, 25)
marg_hist.upcount(1.5, 25)
bid = 1.5
ec = expected_cost(marg_hist, bid)
self.assertAlmostEqual(ec, 0.28125)
ec = expected_cost(marg_hist, 0)
self.assertAlmostEqual(ec, 0.0)
def test_expected_cost(self):
hist = dokHist(m=2, isdensity=True)
hist.set([0, 30], 0.5)
hist.set([30, 0], 0.5)
bid = [25, 25]
ec = expected_cost(hist, bid)
self.assertAlmostEqual(ec, 0.0)
bid = [31, 31]
ec = expected_cost(hist, bid)
self.assertAlmostEqual(ec, 29.5)
