def test_recarray_conversion(self):
# automatic recarray conversion for backward compatibility
imt = PGA()
gsim = AbrahamsonGulerce2020SInter()
ctx = RuptureContext()
ctx.mag = 5.
ctx.sids = [0, 1]
ctx.vs30 = [760., 760.]
ctx.rrup = [100., 110.]
ctx.occurrence_rate = .000001
mean, _stddevs = gsim.get_mean_and_stddevs(ctx, ctx, ctx, imt, [])
numpy.testing.assert_allclose(mean, [-5.81116004, -6.00192455])
def test_rhypo_smaller_than_15(self):
# test the calculation in case of rhypo distances less than 15 km
# (for rhypo=0 the distance term has a singularity). In this case the
# method should return values equal to the ones obtained by clipping
# distances at 15 km.
ctx = RuptureContext()
ctx.sids = [0, 1, 2]
ctx.vs30 = numpy.array([800.0, 800.0, 800.0])
ctx.mag = 5.0
ctx.rake = 0
ctx.occurrence_rate = .0001
ctx.rhypo = numpy.array([0.0, 10.0, 16.0])
ctx.rhypo.flags.writeable = False
mean_0, stds_0 = self.GSIM_CLASS().get_mean_and_stddevs(
ctx, ctx, ctx, PGA(), [StdDev.TOTAL])
mean_15, stds_15 = self.GSIM_CLASS().get_mean_and_stddevs(
ctx, ctx, ctx, PGA(), [StdDev.TOTAL])
numpy.testing.assert_array_equal(mean_0, mean_15)
numpy.testing.assert_array_equal(stds_0, stds_15)
def test_zero_distance(self):
# test the calculation in case of zero rrup distance (for rrup=0
# the slab correction term has a singularity). In this case the
# method should return values equal to the ones obtained by
# replacing 0 values with 0.1
ctx = RuptureContext()
ctx.sids = [0, 1]
ctx.vs30 = numpy.array([800.0, 800.0])
ctx.mag = 5.0
ctx.rake = 0.0
ctx.hypo_depth = 0.0
ctx.rrup = numpy.array([0.0, 0.2])
ctx.occurrence_rate = .0001
mean_0, stds_0 = self.GSIM_CLASS().get_mean_and_stddevs(
ctx, ctx, ctx, PGA(), [StdDev.TOTAL])
ctx.rrup = numpy.array([0.1, 0.2])
mean_01, stds_01 = self.GSIM_CLASS().get_mean_and_stddevs(
ctx, ctx, ctx, PGA(), [StdDev.TOTAL])
numpy.testing.assert_array_equal(mean_0, mean_01)
numpy.testing.assert_array_equal(stds_0, stds_01)