def plot_recurrence_models(configs,
area,
slip,
msr,
rake,
shear_modulus=30.0,
disp_length_ratio=1.25E-5,
msr_sigma=0.,
filename=None,
filetype='png',
dpi=300):
"""
Plots a set of recurrence models
:param list configs:
List of configuration dictionaries
"""
plt.figure(figsize=DEFAULT_SIZE)
for config in configs:
model = RecurrenceBranch(area,
slip,
msr,
rake,
shear_modulus,
disp_length_ratio,
msr_sigma,
weight=1.0)
model.get_recurrence(config)
occurrence = model.recurrence.occur_rates
cumulative = np.array(
[np.sum(occurrence[iloc:]) for iloc in range(0, len(occurrence))])
if 'AndersonLuco' in config['Model_Name']:
flt_label = config['Model_Name'] + ' - ' + config['Model_Type'] +\
' Type'
else:
flt_label = config['Model_Name']
flt_color = np.random.uniform(0.1, 1.0, 3)
plt.semilogy(model.magnitudes,
cumulative,
'-',
label=flt_label,
color=flt_color,
linewidth=2.)
plt.semilogy(model.magnitudes,
model.recurrence.occur_rates,
'--',
color=flt_color,
linewidth=2.)
plt.xlabel('Magnitude', fontsize=14)
plt.ylabel('Annual Rate', fontsize=14)
plt.legend(bbox_to_anchor=(1.1, 1.0))
_save_image(filename, filetype, dpi)
class TestRecurrenceBranch(unittest.TestCase):
'''
Test the :class: hmtk.faults.fault_models.RecurrenceBranch - the class
to control the recurrence calculation for a given model
'''
def setUp(self):
'''
'''
self.msr = WC1994
self.model = None
self.mfd_config = None
def test_simple_instantiation(self):
'''
Basic instantiation test
'''
# Area = 1200 km ^ 2, slip = 12 mm/yr, Rake = -90, Shear Mod =30. GPa
self.model = RecurrenceBranch(1200., 12., self.msr, -90., 30.)
expected_dict = {'area': 1200.0,
'branch_id': None,
'disp_length_ratio': None,
'magnitudes': None,
'max_mag': None,
'msr': WC1994,
'msr_sigma': 0.0,
'rake': -90.0,
'recurrence': None,
'shear_modulus': 30.0,
'slip': 12.0,
'weight': 1.0}
self.assertDictEqual(self.model.__dict__, expected_dict)
def test_update_weight(self):
'''
Tests the simple function to update the weight
'''
self.model = RecurrenceBranch(1200., 12., WC1994, -90., 30.)
self.model.update_weight(0.5)
self.assertAlmostEqual(0.5, self.model.weight, 7)
def test_get_recurrence_simple_characteristic(self):
'''
Tests the function to get the recurrence calculation for a simple
characteristic earthquake
'''
self.mfd_config = {'MFD_spacing': 0.1,
'Model_Name': 'Characteristic',
'Model_Weight': 1.0,
'Maximum_Magnitude': None,
'Maximum_Uncertainty': None,
'Lower_Bound': -2.,
'Upper_Bound': 2., 'Sigma': 0.12}
self.model = RecurrenceBranch(8500., 5., WC1994(), 0., 30.)
self.model.get_recurrence(self.mfd_config)
# Test the same process using just the hmtk.faults.mfd.characteristic
# Implementation
test_model = Characteristic()
test_model.setUp(self.mfd_config)
test_model.get_mmax(self.mfd_config, WC1994(), 0., 8500.)
_ = test_model.get_mfd(5.0, 8500., 30.)
self.assertTrue(isinstance(self.model.recurrence, IncrementalMFD))
self.assertAlmostEqual(self.model.recurrence.min_mag,
test_model.mmin)
self.assertAlmostEqual(self.model.recurrence.bin_width,
test_model.bin_width)
np.testing.assert_array_almost_equal(self.model.recurrence.occur_rates,
test_model.occurrence_rate)
