def __call__(self, asset, hazard):
annual_loss_original = scientific.mean_loss(
self.lcc_original(asset, hazard).loss_curve)
annual_loss_retrofitted = scientific.mean_loss(
self.lcc_retrofitted(asset, hazard).loss_curve)
bcr = scientific.bcr(
annual_loss_original,
annual_loss_retrofitted, self.interest_rate,
self.asset_life_expectancy, asset.retrofitting_cost)
return scientific.BCROutput(
asset, bcr, annual_loss_original, annual_loss_retrofitted)
def test_mean_curve_computation(self):
loss_ratio_curve = Curve([(0, 0.3460), (0.06, 0.12),
(0.12, 0.057), (0.18, 0.04),
(0.24, 0.019), (0.3, 0.009), (0.45, 0)])
self.assertAlmostEqual(0.023305,
mean_loss(loss_ratio_curve), 3)
