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gem/oq-engine
openquake/hazardlib/gsim/berge_thierry_2003.py
BergeThierryEtAl2003Ms._get_stddevs
def _get_stddevs(self, C, stddev_types, num_sites, mag_conversion_sigma): """ Return total standard deviation. """ assert all(stddev_type in self.DEFINED_FOR_STANDARD_DEVIATION_TYPES for stddev_type in stddev_types) sigma = np.zeros(num_sites) + C['sigma'] * n...
python
def _get_stddevs(self, C, stddev_types, num_sites, mag_conversion_sigma): assert all(stddev_type in self.DEFINED_FOR_STANDARD_DEVIATION_TYPES for stddev_type in stddev_types) sigma = np.zeros(num_sites) + C['sigma'] * np.log(10) sigma = np.sqrt(sigma ** 2 + (C['a'] *...
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Return total standard deviation.
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gem/oq-engine
openquake/hazardlib/gsim/berge_thierry_2003.py
BergeThierryEtAl2003Ms._get_mean_and_stddevs
def _get_mean_and_stddevs(self, sites, rup, dists, imt, stddev_types, mag_conversion_sigma=0.0): """ See :meth:`superclass method <.base.GroundShakingIntensityModel.get_mean_and_stddevs>` for spec of input and result values. """ # extract dictionaries of coeffici...
python
def _get_mean_and_stddevs(self, sites, rup, dists, imt, stddev_types, mag_conversion_sigma=0.0): C = self.COEFFS[imt] rhypo = dists.rhypo rhypo[rhypo < 4.] = 4. mean = C['a'] * rup.mag + C['b'] * rhypo - np.log10(rhypo) ...
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See :meth:`superclass method <.base.GroundShakingIntensityModel.get_mean_and_stddevs>` for spec of input and result values.
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gem/oq-engine
openquake/hazardlib/gsim/can15/sslab.py
SSlabCan15Mid.get_mean_and_stddevs
def get_mean_and_stddevs(self, sites, rup, dists, imt, stddev_types): """ See :meth:`superclass method <.base.GroundShakingIntensityModel.get_mean_and_stddevs>` for spec of input and result values. """ # get original values hslab = 50 # See info in GMPEt_Inslab_...
python
def get_mean_and_stddevs(self, sites, rup, dists, imt, stddev_types): hslab = 50 rjb, rrup = utils.get_equivalent_distance_inslab(rup.mag, dists.repi, hslab) dists.rjb = rjb dists.rrup = rrup mean, stdd...
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gem/oq-engine
openquake/calculators/classical.py
get_src_ids
def get_src_ids(sources): """ :returns: a string with the source IDs of the given sources, stripping the extension after the colon, if any """ src_ids = [] for src in sources: long_src_id = src.source_id try: src_id, ext = long_src_id.rsplit(':', 1) ...
python
def get_src_ids(sources): src_ids = [] for src in sources: long_src_id = src.source_id try: src_id, ext = long_src_id.rsplit(':', 1) except ValueError: src_id = long_src_id src_ids.append(src_id) return ' '.join(set(src_ids))
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gem/oq-engine
openquake/calculators/classical.py
get_extreme_poe
def get_extreme_poe(array, imtls): """ :param array: array of shape (L, G) with L=num_levels, G=num_gsims :param imtls: DictArray imt -> levels :returns: the maximum PoE corresponding to the maximum level for IMTs and GSIMs """ return max(array[imtls(imt).stop - 1].max() for imt in imtls...
python
def get_extreme_poe(array, imtls): return max(array[imtls(imt).stop - 1].max() for imt in imtls)
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:param array: array of shape (L, G) with L=num_levels, G=num_gsims :param imtls: DictArray imt -> levels :returns: the maximum PoE corresponding to the maximum level for IMTs and GSIMs
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gem/oq-engine
openquake/calculators/classical.py
classical_split_filter
def classical_split_filter(srcs, srcfilter, gsims, params, monitor): """ Split the given sources, filter the subsources and the compute the PoEs. Yield back subtasks if the split sources contain more than maxweight ruptures. """ # first check if we are sampling the sources ss = int(os.enviro...
python
def classical_split_filter(srcs, srcfilter, gsims, params, monitor): ss = int(os.environ.get('OQ_SAMPLE_SOURCES', 0)) if ss: splits, stime = split_sources(srcs) srcs = readinput.random_filtered_sources(splits, srcfilter, ss) yield classical(srcs, srcfilter, gsims, params, monit...
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gem/oq-engine
openquake/calculators/classical.py
build_hazard_stats
def build_hazard_stats(pgetter, N, hstats, individual_curves, monitor): """ :param pgetter: an :class:`openquake.commonlib.getters.PmapGetter` :param N: the total number of sites :param hstats: a list of pairs (statname, statfunc) :param individual_curves: if True, also build the individual curves ...
python
def build_hazard_stats(pgetter, N, hstats, individual_curves, monitor): with monitor('combine pmaps'): pgetter.init() try: pmaps = pgetter.get_pmaps() except IndexError: return {} if sum(len(pmap) for pmap in pmaps) == 0: return {} R...
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gem/oq-engine
openquake/hazardlib/gsim/cauzzi_faccioli_2008_swiss.py
CauzziFaccioli2008SWISS01.get_mean_and_stddevs
def get_mean_and_stddevs(self, sites, rup, dists, imt, stddev_types): """ See :meth:`superclass method <.base.GroundShakingIntensityModel.get_mean_and_stddevs>` for spec of input and result values. """ sites.vs30 = 700 * np.ones(len(sites.vs30)) mean, stddevs = ...
python
def get_mean_and_stddevs(self, sites, rup, dists, imt, stddev_types): sites.vs30 = 700 * np.ones(len(sites.vs30)) mean, stddevs = super().get_mean_and_stddevs( sites, rup, dists, imt, stddev_types) C = CauzziFaccioli2008SWISS01.COEFFS tau_ss = 'tau' log_p...
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gem/oq-engine
openquake/hazardlib/source/point.py
_get_rupture_dimensions
def _get_rupture_dimensions(src, mag, nodal_plane): """ Calculate and return the rupture length and width for given magnitude ``mag`` and nodal plane. :param src: a PointSource, AreaSource or MultiPointSource :param mag: a magnitude :param nodal_plane: Instance of :class...
python
def _get_rupture_dimensions(src, mag, nodal_plane): area = src.magnitude_scaling_relationship.get_median_area( mag, nodal_plane.rake) rup_length = math.sqrt(area * src.rupture_aspect_ratio) rup_width = area / rup_length seismogenic_layer_width = (src.lower_seismogenic_depth ...
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Calculate and return the rupture length and width for given magnitude ``mag`` and nodal plane. :param src: a PointSource, AreaSource or MultiPointSource :param mag: a magnitude :param nodal_plane: Instance of :class:`openquake.hazardlib.geo.nodalplane.NodalPlane`. :returns: ...
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gem/oq-engine
openquake/hmtk/seismicity/gcmt_utils.py
tensor_components_to_use
def tensor_components_to_use(mrr, mtt, mpp, mrt, mrp, mtp): ''' Converts components to Up, South, East definition:: USE = [[mrr, mrt, mrp], [mtt, mtt, mtp], [mrp, mtp, mpp]] ''' return np.array([[mrr, mrt, mrp], [mrt, mtt, mtp], [mrp, mtp, mpp]])
python
def tensor_components_to_use(mrr, mtt, mpp, mrt, mrp, mtp): return np.array([[mrr, mrt, mrp], [mrt, mtt, mtp], [mrp, mtp, mpp]])
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gem/oq-engine
openquake/hmtk/seismicity/gcmt_utils.py
get_azimuth_plunge
def get_azimuth_plunge(vect, degrees=True): ''' For a given vector in USE format, retrieve the azimuth and plunge ''' if vect[0] > 0: vect = -1. * np.copy(vect) vect_hor = sqrt(vect[1] ** 2. + vect[2] ** 2.) plunge = atan2(-vect[0], vect_hor) azimuth = atan2(vect[2], -vect[1]) if...
python
def get_azimuth_plunge(vect, degrees=True): if vect[0] > 0: vect = -1. * np.copy(vect) vect_hor = sqrt(vect[1] ** 2. + vect[2] ** 2.) plunge = atan2(-vect[0], vect_hor) azimuth = atan2(vect[2], -vect[1]) if degrees: icr = 180. / pi return icr * azimuth % 360., icr * plun...
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For a given vector in USE format, retrieve the azimuth and plunge
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gem/oq-engine
openquake/hmtk/seismicity/gcmt_utils.py
use_to_ned
def use_to_ned(tensor): ''' Converts a tensor in USE coordinate sytem to NED ''' return np.array(ROT_NED_USE.T * np.matrix(tensor) * ROT_NED_USE)
python
def use_to_ned(tensor): return np.array(ROT_NED_USE.T * np.matrix(tensor) * ROT_NED_USE)
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gem/oq-engine
openquake/hmtk/seismicity/gcmt_utils.py
ned_to_use
def ned_to_use(tensor): ''' Converts a tensor in NED coordinate sytem to USE ''' return np.array(ROT_NED_USE * np.matrix(tensor) * ROT_NED_USE.T)
python
def ned_to_use(tensor): return np.array(ROT_NED_USE * np.matrix(tensor) * ROT_NED_USE.T)
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gem/oq-engine
openquake/hmtk/seismicity/gcmt_utils.py
tensor_to_6component
def tensor_to_6component(tensor, frame='USE'): ''' Returns a tensor to six component vector [Mrr, Mtt, Mpp, Mrt, Mrp, Mtp] ''' if 'NED' in frame: tensor = ned_to_use(tensor) return [tensor[0, 0], tensor[1, 1], tensor[2, 2], tensor[0, 1], tensor[0, 2], tensor[1, 2]]
python
def tensor_to_6component(tensor, frame='USE'): if 'NED' in frame: tensor = ned_to_use(tensor) return [tensor[0, 0], tensor[1, 1], tensor[2, 2], tensor[0, 1], tensor[0, 2], tensor[1, 2]]
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Returns a tensor to six component vector [Mrr, Mtt, Mpp, Mrt, Mrp, Mtp]
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gem/oq-engine
openquake/hmtk/seismicity/gcmt_utils.py
normalise_tensor
def normalise_tensor(tensor): ''' Normalise the tensor by dividing it by its norm, defined such that np.sqrt(X:X) ''' tensor_norm = np.linalg.norm(tensor) return tensor / tensor_norm, tensor_norm
python
def normalise_tensor(tensor): tensor_norm = np.linalg.norm(tensor) return tensor / tensor_norm, tensor_norm
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gem/oq-engine
openquake/hmtk/seismicity/gcmt_utils.py
eigendecompose
def eigendecompose(tensor, normalise=False): ''' Performs and eigendecomposition of the tensor and orders into descending eigenvalues ''' if normalise: tensor, tensor_norm = normalise_tensor(tensor) else: tensor_norm = 1. eigvals, eigvects = np.linalg.eigh(tensor, UPLO='U') ...
python
def eigendecompose(tensor, normalise=False): if normalise: tensor, tensor_norm = normalise_tensor(tensor) else: tensor_norm = 1. eigvals, eigvects = np.linalg.eigh(tensor, UPLO='U') isrt = np.argsort(eigvals) eigenvalues = eigvals[isrt] * tensor_norm eigenvectors = eigvect...
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gem/oq-engine
openquake/hmtk/seismicity/gcmt_utils.py
matrix_to_euler
def matrix_to_euler(rotmat): '''Inverse of euler_to_matrix().''' if not isinstance(rotmat, np.matrixlib.defmatrix.matrix): # As this calculation relies on np.matrix algebra - convert array to # matrix rotmat = np.matrix(rotmat) def cvec(x, y, z): return np.matrix([[x, y, z]]...
python
def matrix_to_euler(rotmat): if not isinstance(rotmat, np.matrixlib.defmatrix.matrix): rotmat = np.matrix(rotmat) def cvec(x, y, z): return np.matrix([[x, y, z]]).T ex = cvec(1., 0., 0.) ez = cvec(0., 0., 1.) exs = rotmat.T * ex ezs = rotmat.T * ez eno...
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gem/oq-engine
openquake/hmtk/seismicity/gcmt_utils.py
unique_euler
def unique_euler(alpha, beta, gamma): ''' Uniquify euler angle triplet. Put euler angles into ranges compatible with (dip,strike,-rake) in seismology: alpha (dip) : [0, pi/2] beta (strike) : [0, 2*pi) gamma (-rake) : [-pi, pi) If alpha is near to zero, beta is replaced by beta+gamma and ...
python
def unique_euler(alpha, beta, gamma): alpha = np.mod(alpha, 2.0 * pi) if 0.5 * pi < alpha and alpha <= pi: alpha = pi - alpha beta = beta + pi gamma = 2.0 * pi - gamma elif pi < alpha and alpha <= 1.5 * pi: alpha = alpha - pi gamma = pi - gamma elif 1.5 * p...
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gem/oq-engine
openquake/hmtk/seismicity/gcmt_utils.py
moment_magnitude_scalar
def moment_magnitude_scalar(moment): ''' Uses Hanks & Kanamori formula for calculating moment magnitude from a scalar moment (Nm) ''' if isinstance(moment, np.ndarray): return (2. / 3.) * (np.log10(moment) - 9.05) else: return (2. / 3.) * (log10(moment) - 9.05)
python
def moment_magnitude_scalar(moment): if isinstance(moment, np.ndarray): return (2. / 3.) * (np.log10(moment) - 9.05) else: return (2. / 3.) * (log10(moment) - 9.05)
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Uses Hanks & Kanamori formula for calculating moment magnitude from a scalar moment (Nm)
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gem/oq-engine
openquake/hazardlib/gsim/boore_atkinson_2008.py
BooreAtkinson2008.get_mean_and_stddevs
def get_mean_and_stddevs(self, sites, rup, dists, imt, stddev_types): """ See :meth:`superclass method <.base.GroundShakingIntensityModel.get_mean_and_stddevs>` for spec of input and result values. """ # extracting dictionary of coefficients specific to required #...
python
def get_mean_and_stddevs(self, sites, rup, dists, imt, stddev_types): C = self.COEFFS[imt] C_SR = self.COEFFS_SOIL_RESPONSE[imt] pga4nl = self._get_pga_on_rock(rup, dists, C) if imt == PGA(): ...
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gem/oq-engine
openquake/hazardlib/gsim/boore_atkinson_2008.py
BooreAtkinson2008._compute_distance_scaling
def _compute_distance_scaling(self, rup, dists, C): """ Compute distance-scaling term, equations (3) and (4), pag 107. """ Mref = 4.5 Rref = 1.0 R = np.sqrt(dists.rjb ** 2 + C['h'] ** 2) return (C['c1'] + C['c2'] * (rup.mag - Mref)) * np.log(R / Rref) + \ ...
python
def _compute_distance_scaling(self, rup, dists, C): Mref = 4.5 Rref = 1.0 R = np.sqrt(dists.rjb ** 2 + C['h'] ** 2) return (C['c1'] + C['c2'] * (rup.mag - Mref)) * np.log(R / Rref) + \ C['c3'] * (R - Rref)
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Compute distance-scaling term, equations (3) and (4), pag 107.
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gem/oq-engine
openquake/hazardlib/gsim/boore_atkinson_2008.py
BooreAtkinson2008._compute_magnitude_scaling
def _compute_magnitude_scaling(self, rup, C): """ Compute magnitude-scaling term, equations (5a) and (5b), pag 107. """ U, SS, NS, RS = self._get_fault_type_dummy_variables(rup) if rup.mag <= C['Mh']: return C['e1'] * U + C['e2'] * SS + C['e3'] * NS + C['e4'] * RS + \...
python
def _compute_magnitude_scaling(self, rup, C): U, SS, NS, RS = self._get_fault_type_dummy_variables(rup) if rup.mag <= C['Mh']: return C['e1'] * U + C['e2'] * SS + C['e3'] * NS + C['e4'] * RS + \ C['e5'] * (rup.mag - C['Mh']) + \ C['e6'] * (rup.mag - C...
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Compute magnitude-scaling term, equations (5a) and (5b), pag 107.
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gem/oq-engine
openquake/hazardlib/gsim/boore_atkinson_2008.py
BooreAtkinson2008._get_pga_on_rock
def _get_pga_on_rock(self, rup, dists, _C): """ Compute and return PGA on rock conditions (that is vs30 = 760.0 m/s). This is needed to compute non-linear site amplification term """ # Median PGA in g for Vref = 760.0, without site amplification, # that is equation (1) pa...
python
def _get_pga_on_rock(self, rup, dists, _C): C_pga = self.COEFFS[PGA()] pga4nl = np.exp(self._compute_magnitude_scaling(rup, C_pga) + self._compute_distance_scaling(rup, dists, C_pga...
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Compute and return PGA on rock conditions (that is vs30 = 760.0 m/s). This is needed to compute non-linear site amplification term
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gem/oq-engine
openquake/hazardlib/gsim/boore_atkinson_2008.py
BooreAtkinson2008._get_site_amplification_non_linear
def _get_site_amplification_non_linear(self, vs30, pga4nl, C): """ Compute site amplification non-linear term, equations (8a) to (13d), pag 108-109. """ # non linear slope bnl = self._compute_non_linear_slope(vs30, C) # compute the actual non-linear term r...
python
def _get_site_amplification_non_linear(self, vs30, pga4nl, C): bnl = self._compute_non_linear_slope(vs30, C) return self._compute_non_linear_term(pga4nl, bnl)
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gem/oq-engine
openquake/hazardlib/gsim/boore_atkinson_2008.py
BooreAtkinson2008._compute_non_linear_slope
def _compute_non_linear_slope(self, vs30, C): """ Compute non-linear slope factor, equations (13a) to (13d), pag 108-109. """ V1 = 180.0 V2 = 300.0 Vref = 760.0 # equation (13d), values are zero for vs30 >= Vref = 760.0 bnl = np.zeros(vs30.shape) ...
python
def _compute_non_linear_slope(self, vs30, C): V1 = 180.0 V2 = 300.0 Vref = 760.0 bnl = np.zeros(vs30.shape) idx = vs30 <= V1 bnl[idx] = C['b1'] idx = np.where((vs30 > V1) & (vs30 <= V2)) bnl[idx] = (C['b1'] - C['b2'])...
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gem/oq-engine
openquake/hazardlib/gsim/boore_atkinson_2008.py
BooreAtkinson2008._compute_non_linear_term
def _compute_non_linear_term(self, pga4nl, bnl): """ Compute non-linear term, equation (8a) to (8c), pag 108. """ fnl = np.zeros(pga4nl.shape) a1 = 0.03 a2 = 0.09 pga_low = 0.06 # equation (8a) idx = pga4nl <= a1 fnl[idx] = bnl[id...
python
def _compute_non_linear_term(self, pga4nl, bnl): fnl = np.zeros(pga4nl.shape) a1 = 0.03 a2 = 0.09 pga_low = 0.06 idx = pga4nl <= a1 fnl[idx] = bnl[idx] * np.log(pga_low / 0.1) idx = np.where((pga4nl > a1) & (pga4nl <= a2)) del...
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gem/oq-engine
openquake/hazardlib/gsim/boore_atkinson_2008.py
Atkinson2010Hawaii.get_mean_and_stddevs
def get_mean_and_stddevs(self, sites, rup, dists, imt, stddev_types): """ Using a frequency dependent correction for the mean ground motion. Standard deviation is fixed. """ mean, stddevs = super().get_mean_and_stddevs(sites, rup, dists, ...
python
def get_mean_and_stddevs(self, sites, rup, dists, imt, stddev_types): mean, stddevs = super().get_mean_and_stddevs(sites, rup, dists, imt, stddev_types) if imt == PGA(): freq = 50.0 elif imt == PGV(): ...
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gem/oq-engine
openquake/hazardlib/gsim/boore_atkinson_2008.py
Atkinson2010Hawaii._get_stddevs
def _get_stddevs(self, C, stddev_types, num_sites): """ Return total standard deviation. """ assert all(stddev_type in self.DEFINED_FOR_STANDARD_DEVIATION_TYPES for stddev_type in stddev_types) # Using a frequency independent value of sigma as recommended ...
python
def _get_stddevs(self, C, stddev_types, num_sites): assert all(stddev_type in self.DEFINED_FOR_STANDARD_DEVIATION_TYPES for stddev_type in stddev_types) stddevs = [0.26/np.log10(np.e) + np.zeros(num_sites)] return stddevs
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Return total standard deviation.
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gem/oq-engine
openquake/commonlib/rlzs_assoc.py
accept_path
def accept_path(path, ref_path): """ :param path: a logic tree path (list or tuple of strings) :param ref_path: reference logic tree path :returns: True if `path` is consistent with `ref_path`, False otherwise >>> accept_path(['SM2'], ('SM2', 'a3b1')) False >>> accept_path(['SM2', '@'], ('S...
python
def accept_path(path, ref_path): if len(path) != len(ref_path): return False for a, b in zip(path, ref_path): if a != '@' and a != b: return False return True
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gem/oq-engine
openquake/commonlib/rlzs_assoc.py
get_rlzs_assoc
def get_rlzs_assoc(cinfo, sm_lt_path=None, trts=None): """ :param cinfo: a :class:`openquake.commonlib.source.CompositionInfo` :param sm_lt_path: logic tree path tuple used to select a source model :param trts: tectonic region types to accept """ assoc = RlzsAssoc(cinfo) offset = 0 trtse...
python
def get_rlzs_assoc(cinfo, sm_lt_path=None, trts=None): assoc = RlzsAssoc(cinfo) offset = 0 trtset = set(cinfo.gsim_lt.values) for smodel in cinfo.source_models: if sm_lt_path and not accept_path(smodel.path, sm_lt_path): continue trts_ = set() ...
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gem/oq-engine
openquake/commonlib/rlzs_assoc.py
RlzsAssoc.get_rlzs_by_gsim
def get_rlzs_by_gsim(self, trt_or_grp_id, sm_id=None): """ :param trt_or_grp_id: a tectonic region type or a source group ID :param sm_id: source model ordinal (or None) :returns: a dictionary gsim -> rlzs """ if isinstance(trt_or_grp_id, (int, U16, U32)): # grp_id ...
python
def get_rlzs_by_gsim(self, trt_or_grp_id, sm_id=None): if isinstance(trt_or_grp_id, (int, U16, U32)): trt = self.csm_info.trt_by_grp[trt_or_grp_id] sm_id = self.csm_info.get_sm_by_grp()[trt_or_grp_id] else: trt = trt_or_grp_id acc = collections.de...
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gem/oq-engine
openquake/commonlib/rlzs_assoc.py
RlzsAssoc.by_grp
def by_grp(self): """ :returns: a dictionary grp -> rlzis """ dic = {} # grp -> [(gsim_idx, rlzis), ...] for sm in self.csm_info.source_models: for sg in sm.src_groups: if not sg.eff_ruptures: continue rlzs_by_gsim ...
python
def by_grp(self): dic = {} for sm in self.csm_info.source_models: for sg in sm.src_groups: if not sg.eff_ruptures: continue rlzs_by_gsim = self.get_rlzs_by_gsim(sg.trt, sm.ordinal) if not rlzs_by_gsim: ...
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train
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gem/oq-engine
openquake/commonlib/rlzs_assoc.py
RlzsAssoc._init
def _init(self): """ Finalize the initialization of the RlzsAssoc object by setting the (reduced) weights of the realizations. """ if self.num_samples: assert len(self.realizations) == self.num_samples, ( len(self.realizations), self.num_samples) ...
python
def _init(self): if self.num_samples: assert len(self.realizations) == self.num_samples, ( len(self.realizations), self.num_samples) for rlz in self.realizations: for k in rlz.weight.dic: rlz.weight.dic[k] = 1. / self.num_sampl...
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gem/oq-engine
openquake/commonlib/rlzs_assoc.py
RlzsAssoc.combine_pmaps
def combine_pmaps(self, pmap_by_grp): """ :param pmap_by_grp: dictionary group string -> probability map :returns: a list of probability maps, one per realization """ grp = list(pmap_by_grp)[0] # pmap_by_grp must be non-empty num_levels = pmap_by_grp[grp].shape_y ...
python
def combine_pmaps(self, pmap_by_grp): grp = list(pmap_by_grp)[0] num_levels = pmap_by_grp[grp].shape_y pmaps = [probability_map.ProbabilityMap(num_levels, 1) for _ in self.realizations] array = self.by_grp() for grp in pmap_by_grp: for gsim...
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train
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gem/oq-engine
openquake/commonlib/rlzs_assoc.py
RlzsAssoc.get_rlz
def get_rlz(self, rlzstr): r""" Get a Realization instance for a string of the form 'rlz-\d+' """ mo = re.match(r'rlz-(\d+)', rlzstr) if not mo: return return self.realizations[int(mo.group(1))]
python
def get_rlz(self, rlzstr): r mo = re.match(r'rlz-(\d+)', rlzstr) if not mo: return return self.realizations[int(mo.group(1))]
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r""" Get a Realization instance for a string of the form 'rlz-\d+'
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gem/oq-engine
openquake/commands/export.py
export
def export(datastore_key, calc_id=-1, exports='csv', export_dir='.'): """ Export an output from the datastore. """ dstore = util.read(calc_id) parent_id = dstore['oqparam'].hazard_calculation_id if parent_id: dstore.parent = util.read(parent_id) dstore.export_dir = export_dir ...
python
def export(datastore_key, calc_id=-1, exports='csv', export_dir='.'): dstore = util.read(calc_id) parent_id = dstore['oqparam'].hazard_calculation_id if parent_id: dstore.parent = util.read(parent_id) dstore.export_dir = export_dir with performance.Monitor('export', measuremem=True)...
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gem/oq-engine
openquake/calculators/ucerf_base.py
convert_UCERFSource
def convert_UCERFSource(self, node): """ Converts the Ucerf Source node into an SES Control object """ dirname = os.path.dirname(self.fname) # where the source_model_file is source_file = os.path.join(dirname, node["filename"]) if "startDate" in node.attrib and "investigationTime" in node.attri...
python
def convert_UCERFSource(self, node): dirname = os.path.dirname(self.fname) source_file = os.path.join(dirname, node["filename"]) if "startDate" in node.attrib and "investigationTime" in node.attrib: inv_time = float(node["investigationTime"]) if inv_time != ...
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gem/oq-engine
openquake/calculators/ucerf_base.py
build_idx_set
def build_idx_set(branch_id, start_date): """ Builds a dictionary of keys based on the branch code """ code_set = branch_id.split("/") code_set.insert(3, "Rates") idx_set = { "sec": "/".join([code_set[0], code_set[1], "Sections"]), "mag": "/".join([code_set[0], code_set[1], code_...
python
def build_idx_set(branch_id, start_date): code_set = branch_id.split("/") code_set.insert(3, "Rates") idx_set = { "sec": "/".join([code_set[0], code_set[1], "Sections"]), "mag": "/".join([code_set[0], code_set[1], code_set[2], "Magnitude"])} idx_set["rate"] = "/".join(code_set) ...
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gem/oq-engine
openquake/calculators/ucerf_base.py
get_rupture_dimensions
def get_rupture_dimensions(mag, nodal_plane, msr, rupture_aspect_ratio, upper_seismogenic_depth, lower_seismogenic_depth): """ Calculate and return the rupture length and width for given magnitude ``mag`` and nodal plane. :param nodal_plane: Instance of :class:`openqu...
python
def get_rupture_dimensions(mag, nodal_plane, msr, rupture_aspect_ratio, upper_seismogenic_depth, lower_seismogenic_depth): area = msr.get_median_area(mag, nodal_plane.rake) rup_length = math.sqrt(area * rupture_aspect_ratio) rup_width = area / rup_length seismogenic_layer...
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Calculate and return the rupture length and width for given magnitude ``mag`` and nodal plane. :param nodal_plane: Instance of :class:`openquake.hazardlib.geo.nodalplane.NodalPlane`. :returns: Tuple of two items: rupture length in width in km. The rupture area is calculated using metho...
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gem/oq-engine
openquake/calculators/ucerf_base.py
get_rupture_surface
def get_rupture_surface(mag, nodal_plane, hypocenter, msr, rupture_aspect_ratio, upper_seismogenic_depth, lower_seismogenic_depth, mesh_spacing=1.0): """ Create and return rupture surface object with given properties. :param mag: Magnitude value, used...
python
def get_rupture_surface(mag, nodal_plane, hypocenter, msr, rupture_aspect_ratio, upper_seismogenic_depth, lower_seismogenic_depth, mesh_spacing=1.0): assert (upper_seismogenic_depth <= hypocenter.depth and lower_seismogenic_depth >= hypocenter.depth) ...
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Create and return rupture surface object with given properties. :param mag: Magnitude value, used to calculate rupture dimensions, see :meth:`_get_rupture_dimensions`. :param nodal_plane: Instance of :class:`openquake.hazardlib.geo.nodalplane.NodalPlane` describing the rupture o...
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gem/oq-engine
openquake/calculators/ucerf_base.py
generate_background_ruptures
def generate_background_ruptures(tom, locations, occurrence, mag, npd, hdd, upper_seismogenic_depth, lower_seismogenic_depth, msr=WC1994(), aspect=1.5, trt=DEFAULT_TRT): """ :param tom: Temporal occurrence...
python
def generate_background_ruptures(tom, locations, occurrence, mag, npd, hdd, upper_seismogenic_depth, lower_seismogenic_depth, msr=WC1994(), aspect=1.5, trt=DEFAULT_TRT): ruptures = [] n_vals = len(locations) ...
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:param tom: Temporal occurrence model as instance of :class: openquake.hazardlib.tom.TOM :param numpy.ndarray locations: Array of locations [Longitude, Latitude] of the point sources :param numpy.ndarray occurrence: Annual rates of occurrence :param float mag: Magnitu...
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gem/oq-engine
openquake/calculators/ucerf_base.py
UcerfFilter.get_indices
def get_indices(self, src, ridx, mag): """ :param src: an UCERF source :param ridx: a set of rupture indices :param mag: magnitude to use to compute the integration distance :returns: array with the IDs of the sites close to the ruptures """ centroids = src.get_ce...
python
def get_indices(self, src, ridx, mag): centroids = src.get_centroids(ridx) mindistance = min_geodetic_distance( (centroids[:, 0], centroids[:, 1]), self.sitecol.xyz) idist = self.integration_distance(DEFAULT_TRT, mag) indices, = (mindistance <= idist).nonzero() ...
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gem/oq-engine
openquake/calculators/ucerf_base.py
UCERFSource.new
def new(self, grp_id, branch_id): """ :param grp_id: ordinal of the source group :param branch_name: name of the UCERF branch :param branch_id: string associated to the branch :returns: a new UCERFSource associated to the branch_id """ new = copy.copy(self) ...
python
def new(self, grp_id, branch_id): new = copy.copy(self) new.orig = new new.src_group_id = grp_id new.source_id = branch_id new.idx_set = build_idx_set(branch_id, self.start_date) with h5py.File(self.source_file, "r") as hdf5: new.start = 0 ...
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gem/oq-engine
openquake/calculators/ucerf_base.py
UCERFSource.get_ridx
def get_ridx(self, iloc): """List of rupture indices for the given iloc""" with h5py.File(self.source_file, "r") as hdf5: return hdf5[self.idx_set["geol"] + "/RuptureIndex"][iloc]
python
def get_ridx(self, iloc): with h5py.File(self.source_file, "r") as hdf5: return hdf5[self.idx_set["geol"] + "/RuptureIndex"][iloc]
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gem/oq-engine
openquake/calculators/ucerf_base.py
UCERFSource.get_centroids
def get_centroids(self, ridx): """ :returns: array of centroids for the given rupture index """ centroids = [] with h5py.File(self.source_file, "r") as hdf5: for idx in ridx: trace = "{:s}/{:s}".format(self.idx_set["sec"], str(idx)) cen...
python
def get_centroids(self, ridx): centroids = [] with h5py.File(self.source_file, "r") as hdf5: for idx in ridx: trace = "{:s}/{:s}".format(self.idx_set["sec"], str(idx)) centroids.append(hdf5[trace + "/Centroids"].value) return numpy.concatenate...
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gem/oq-engine
openquake/calculators/ucerf_base.py
UCERFSource.gen_trace_planes
def gen_trace_planes(self, ridx): """ :yields: trace and rupture planes for the given rupture index """ with h5py.File(self.source_file, "r") as hdf5: for idx in ridx: trace = "{:s}/{:s}".format(self.idx_set["sec"], str(idx)) plane = hdf5[trace...
python
def gen_trace_planes(self, ridx): with h5py.File(self.source_file, "r") as hdf5: for idx in ridx: trace = "{:s}/{:s}".format(self.idx_set["sec"], str(idx)) plane = hdf5[trace + "/RupturePlanes"][:].astype("float64") yield trace, plane
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gem/oq-engine
openquake/calculators/ucerf_base.py
UCERFSource.get_background_sids
def get_background_sids(self, src_filter): """ We can apply the filtering of the background sites as a pre-processing step - this is done here rather than in the sampling of the ruptures themselves """ branch_key = self.idx_set["grid_key"] idist = src_filter.integ...
python
def get_background_sids(self, src_filter): branch_key = self.idx_set["grid_key"] idist = src_filter.integration_distance(DEFAULT_TRT) with h5py.File(self.source_file, 'r') as hdf5: bg_locations = hdf5["Grid/Locations"].value distances = min_geodetic_distance( ...
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gem/oq-engine
openquake/calculators/ucerf_base.py
UCERFSource.get_ucerf_rupture
def get_ucerf_rupture(self, iloc, src_filter): """ :param iloc: Location of the rupture plane in the hdf5 file :param src_filter: Sites for consideration and maximum distance """ trt = self.tectonic_region_type ridx = self.get_ridx(iloc) ma...
python
def get_ucerf_rupture(self, iloc, src_filter): trt = self.tectonic_region_type ridx = self.get_ridx(iloc) mag = self.orig.mags[iloc] surface_set = [] indices = src_filter.get_indices(self, ridx, mag) if len(indices) == 0: return None for trace...
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gem/oq-engine
openquake/calculators/ucerf_base.py
UCERFSource.iter_ruptures
def iter_ruptures(self): """ Yield ruptures for the current set of indices """ assert self.orig, '%s is not fully initialized' % self for ridx in range(self.start, self.stop): if self.orig.rate[ridx]: # ruptures may have have zero rate rup = self.get_...
python
def iter_ruptures(self): assert self.orig, '%s is not fully initialized' % self for ridx in range(self.start, self.stop): if self.orig.rate[ridx]: rup = self.get_ucerf_rupture(ridx, self.src_filter) if rup: yield rup
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gem/oq-engine
openquake/calculators/ucerf_base.py
UCERFSource.get_background_sources
def get_background_sources(self, src_filter, sample_factor=None): """ Turn the background model of a given branch into a set of point sources :param src_filter: SourceFilter instance :param sample_factor: Used to reduce the sources if OQ_SAMPLE_SOURCES is set ...
python
def get_background_sources(self, src_filter, sample_factor=None): background_sids = self.get_background_sids(src_filter) if sample_factor is not None: background_sids = random_filter( background_sids, sample_factor, seed=42) with h5py.File(self.source_file,...
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gem/oq-engine
openquake/hazardlib/source/rupture_collection.py
split
def split(src, chunksize=MINWEIGHT): """ Split a complex fault source in chunks """ for i, block in enumerate(block_splitter(src.iter_ruptures(), chunksize, key=operator.attrgetter('mag'))): rup = block[0] source_id = '%s:%d' % (src.source_id,...
python
def split(src, chunksize=MINWEIGHT): for i, block in enumerate(block_splitter(src.iter_ruptures(), chunksize, key=operator.attrgetter('mag'))): rup = block[0] source_id = '%s:%d' % (src.source_id, i) amfd = mfd.ArbitraryMFD([rup.mag], [rup.ma...
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Split a complex fault source in chunks
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train
https://github.com/gem/oq-engine/blob/8294553a0b8aba33fd96437a35065d03547d0040/openquake/hazardlib/source/rupture_collection.py#L61-L72
gem/oq-engine
openquake/hazardlib/source/rupture_collection.py
RuptureCollectionSource.get_bounding_box
def get_bounding_box(self, maxdist): """ Bounding box containing all the hypocenters, enlarged by the maximum distance """ locations = [rup.hypocenter for rup in self.ruptures] return get_bounding_box(locations, maxdist)
python
def get_bounding_box(self, maxdist): locations = [rup.hypocenter for rup in self.ruptures] return get_bounding_box(locations, maxdist)
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Bounding box containing all the hypocenters, enlarged by the maximum distance
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train
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gem/oq-engine
openquake/commands/show_attrs.py
show_attrs
def show_attrs(key, calc_id=-1): """ Show the attributes of a HDF5 dataset in the datastore. """ ds = util.read(calc_id) try: attrs = h5py.File.__getitem__(ds.hdf5, key).attrs except KeyError: print('%r is not in %s' % (key, ds)) else: if len(attrs) == 0: ...
python
def show_attrs(key, calc_id=-1): ds = util.read(calc_id) try: attrs = h5py.File.__getitem__(ds.hdf5, key).attrs except KeyError: print('%r is not in %s' % (key, ds)) else: if len(attrs) == 0: print('%s has no attributes' % key) for name, value in attrs.it...
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Show the attributes of a HDF5 dataset in the datastore.
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train
https://github.com/gem/oq-engine/blob/8294553a0b8aba33fd96437a35065d03547d0040/openquake/commands/show_attrs.py#L24-L39
gem/oq-engine
utils/compare_mean_curves.py
compare_mean_curves
def compare_mean_curves(calc_ref, calc, nsigma=3): """ Compare the hazard curves coming from two different calculations. """ dstore_ref = datastore.read(calc_ref) dstore = datastore.read(calc) imtls = dstore_ref['oqparam'].imtls if dstore['oqparam'].imtls != imtls: raise RuntimeError...
python
def compare_mean_curves(calc_ref, calc, nsigma=3): dstore_ref = datastore.read(calc_ref) dstore = datastore.read(calc) imtls = dstore_ref['oqparam'].imtls if dstore['oqparam'].imtls != imtls: raise RuntimeError('The IMTs and levels are different between ' 'calcula...
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Compare the hazard curves coming from two different calculations.
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train
https://github.com/gem/oq-engine/blob/8294553a0b8aba33fd96437a35065d03547d0040/utils/compare_mean_curves.py#L27-L69
gem/oq-engine
openquake/hazardlib/gsim/chiou_youngs_2014.py
ChiouYoungs2014._get_mean
def _get_mean(self, sites, C, ln_y_ref, exp1, exp2): """ Add site effects to an intensity. Implements eq. 13b. """ # we do not support estimating of basin depth and instead # rely on it being available (since we require it). # centered_z1pt0 centered_z1pt...
python
def _get_mean(self, sites, C, ln_y_ref, exp1, exp2): centered_z1pt0 = self._get_centered_z1pt0(sites) eta = epsilon = 0. ln_y = ( ln_y_ref + eta + C['phi1'] * np.log(sites.vs30 / 1130).clip(-...
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gem/oq-engine
openquake/hazardlib/gsim/chiou_youngs_2014.py
ChiouYoungs2014._get_ln_y_ref
def _get_ln_y_ref(self, rup, dists, C): """ Get an intensity on a reference soil. Implements eq. 13a. """ # reverse faulting flag Frv = 1. if 30 <= rup.rake <= 150 else 0. # normal faulting flag Fnm = 1. if -120 <= rup.rake <= -60 else 0. # hangin...
python
def _get_ln_y_ref(self, rup, dists, C): Frv = 1. if 30 <= rup.rake <= 150 else 0. Fnm = 1. if -120 <= rup.rake <= -60 else 0. Fhw = np.zeros_like(dists.rx) idx = np.nonzero(dists.rx >= 0.) Fhw[idx] = 1. mag_test1 = np.cosh(2....
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gem/oq-engine
openquake/hazardlib/gsim/chiou_youngs_2014.py
ChiouYoungs2014._get_centered_z1pt0
def _get_centered_z1pt0(self, sites): """ Get z1pt0 centered on the Vs30- dependent avarage z1pt0(m) California and non-Japan regions """ #: California and non-Japan regions mean_z1pt0 = (-7.15 / 4.) * np.log(((sites.vs30) ** 4. + 570.94 ** 4.) ...
python
def _get_centered_z1pt0(self, sites): mean_z1pt0 = (-7.15 / 4.) * np.log(((sites.vs30) ** 4. + 570.94 ** 4.) / (1360 ** 4. + 570.94 ** 4.)) centered_z1pt0 = sites.z1pt0 - np.exp(mean_z1pt0) return centered_z1pt0
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gem/oq-engine
openquake/hazardlib/gsim/chiou_youngs_2014.py
ChiouYoungs2014._get_centered_ztor
def _get_centered_ztor(self, rup, Frv): """ Get ztor centered on the M- dependent avarage ztor(km) by different fault types. """ if Frv == 1: mean_ztor = max(2.704 - 1.226 * max(rup.mag - 5.849, 0.0), 0.) ** 2 centered_ztor = rup.ztor - mean_ztor ...
python
def _get_centered_ztor(self, rup, Frv): if Frv == 1: mean_ztor = max(2.704 - 1.226 * max(rup.mag - 5.849, 0.0), 0.) ** 2 centered_ztor = rup.ztor - mean_ztor else: mean_ztor = max(2.673 - 1.136 * max(rup.mag - 4.970, 0.0), 0.) ** 2 centered_ztor...
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Get ztor centered on the M- dependent avarage ztor(km) by different fault types.
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gem/oq-engine
openquake/hazardlib/gsim/chiou_youngs_2014.py
ChiouYoungs2014PEER._get_stddevs
def _get_stddevs(self, sites, rup, C, stddev_types, ln_y_ref, exp1, exp2): """ Returns the standard deviation, which is fixed at 0.65 for every site """ ret = [] for stddev_type in stddev_types: assert stddev_type in self.DEFINED_FOR_STANDARD_DEVIATION_TYPES ...
python
def _get_stddevs(self, sites, rup, C, stddev_types, ln_y_ref, exp1, exp2): ret = [] for stddev_type in stddev_types: assert stddev_type in self.DEFINED_FOR_STANDARD_DEVIATION_TYPES if stddev_type == const.StdDev.TOTAL: ret.append(0.65 * n...
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Returns the standard deviation, which is fixed at 0.65 for every site
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train
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gem/oq-engine
openquake/risklib/scientific.py
fine_graining
def fine_graining(points, steps): """ :param points: a list of floats :param int steps: expansion steps (>= 2) >>> fine_graining([0, 1], steps=0) [0, 1] >>> fine_graining([0, 1], steps=1) [0, 1] >>> fine_graining([0, 1], steps=2) array([0. , 0.5, 1. ]) >>> fine_graining([0, 1], ...
python
def fine_graining(points, steps): if steps < 2: return points ls = numpy.concatenate([numpy.linspace(x, y, num=steps + 1)[:-1] for x, y in pairwise(points)]) return numpy.concatenate([ls, [points[-1]]])
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:param points: a list of floats :param int steps: expansion steps (>= 2) >>> fine_graining([0, 1], steps=0) [0, 1] >>> fine_graining([0, 1], steps=1) [0, 1] >>> fine_graining([0, 1], steps=2) array([0. , 0.5, 1. ]) >>> fine_graining([0, 1], steps=3) array([0. , 0.33333333, 0....
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gem/oq-engine
openquake/risklib/scientific.py
build_imls
def build_imls(ff, continuous_fragility_discretization, steps_per_interval=0): """ Build intensity measure levels from a fragility function. If the function is continuous, they are produced simply as a linear space between minIML and maxIML. If the function is discrete, they are generated...
python
def build_imls(ff, continuous_fragility_discretization, steps_per_interval=0): if ff.format == 'discrete': imls = ff.imls if ff.nodamage and ff.nodamage < imls[0]: imls = [ff.nodamage] + imls if steps_per_interval > 1: gen_imls = fine_graining(imls...
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gem/oq-engine
openquake/risklib/scientific.py
make_epsilons
def make_epsilons(matrix, seed, correlation): """ Given a matrix N * R returns a matrix of the same shape N * R obtained by applying the multivariate_normal distribution to N points and R samples, by starting from the given seed and correlation. """ if seed is not None: numpy.random....
python
def make_epsilons(matrix, seed, correlation): if seed is not None: numpy.random.seed(seed) asset_count = len(matrix) samples = len(matrix[0]) if not correlation: return numpy.random.normal(size=(samples, asset_count)).transpose() means_vector = numpy.zeros(asset_count) cov...
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gem/oq-engine
openquake/risklib/scientific.py
scenario_damage
def scenario_damage(fragility_functions, gmvs): """ :param fragility_functions: a list of D - 1 fragility functions :param gmvs: an array of E ground motion values :returns: an array of (D, E) damage fractions """ lst = [numpy.ones_like(gmvs)] for f, ff in enumerate(fragility_functions): # ...
python
def scenario_damage(fragility_functions, gmvs): lst = [numpy.ones_like(gmvs)] for f, ff in enumerate(fragility_functions): lst.append(ff(gmvs)) lst.append(numpy.zeros_like(gmvs)) arr = pairwise_diff(numpy.array(lst)) arr[arr < 1E-7] = 0 return arr
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:param fragility_functions: a list of D - 1 fragility functions :param gmvs: an array of E ground motion values :returns: an array of (D, E) damage fractions
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gem/oq-engine
openquake/risklib/scientific.py
annual_frequency_of_exceedence
def annual_frequency_of_exceedence(poe, t_haz): """ :param poe: array of probabilities of exceedence :param t_haz: hazard investigation time :returns: array of frequencies (with +inf values where poe=1) """ with warnings.catch_warnings(): warnings.simplefilter("ignore") # avoid R...
python
def annual_frequency_of_exceedence(poe, t_haz): with warnings.catch_warnings(): warnings.simplefilter("ignore") return - numpy.log(1. - poe) / t_haz
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gem/oq-engine
openquake/risklib/scientific.py
classical_damage
def classical_damage( fragility_functions, hazard_imls, hazard_poes, investigation_time, risk_investigation_time): """ :param fragility_functions: a list of fragility functions for each damage state :param hazard_imls: Intensity Measure Levels :param hazard_poes: ...
python
def classical_damage( fragility_functions, hazard_imls, hazard_poes, investigation_time, risk_investigation_time): spi = fragility_functions.steps_per_interval if spi and spi > 1: imls = numpy.array(fragility_functions.interp_imls) min_val, max_val = hazard_imls[0], hazard...
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gem/oq-engine
openquake/risklib/scientific.py
classical
def classical(vulnerability_function, hazard_imls, hazard_poes, loss_ratios): """ :param vulnerability_function: an instance of :py:class:`openquake.risklib.scientific.VulnerabilityFunction` representing the vulnerability function used to compute the curve. :param hazard_imls: ...
python
def classical(vulnerability_function, hazard_imls, hazard_poes, loss_ratios): assert len(hazard_imls) == len(hazard_poes), ( len(hazard_imls), len(hazard_poes)) vf = vulnerability_function imls = vf.mean_imls() lrem = vf.loss_ratio_exceedance_matrix(loss_ratios) min_val, max_val =...
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gem/oq-engine
openquake/risklib/scientific.py
conditional_loss_ratio
def conditional_loss_ratio(loss_ratios, poes, probability): """ Return the loss ratio corresponding to the given PoE (Probability of Exceendance). We can have four cases: 1. If `probability` is in `poes` it takes the bigger corresponding loss_ratios. 2. If it is in `(poe1, poe2)` wher...
python
def conditional_loss_ratio(loss_ratios, poes, probability): assert len(loss_ratios) >= 3, loss_ratios rpoes = poes[::-1] if probability > poes[0]: return 0.0 elif probability < poes[-1]: return loss_ratios[-1] if probability in poes: return max([loss ...
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gem/oq-engine
openquake/risklib/scientific.py
insured_losses
def insured_losses(losses, deductible, insured_limit): """ :param losses: an array of ground-up loss ratios :param float deductible: the deductible limit in fraction form :param float insured_limit: the insured limit in fraction form Compute insured losses for the given asset and losses, from the p...
python
def insured_losses(losses, deductible, insured_limit): return numpy.piecewise( losses, [losses < deductible, losses > insured_limit], [0, insured_limit - deductible, lambda x: x - deductible])
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:param losses: an array of ground-up loss ratios :param float deductible: the deductible limit in fraction form :param float insured_limit: the insured limit in fraction form Compute insured losses for the given asset and losses, from the point of view of the insurance company. For instance: >>> i...
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gem/oq-engine
openquake/risklib/scientific.py
insured_loss_curve
def insured_loss_curve(curve, deductible, insured_limit): """ Compute an insured loss ratio curve given a loss ratio curve :param curve: an array 2 x R (where R is the curve resolution) :param float deductible: the deductible limit in fraction form :param float insured_limit: the insured limit in f...
python
def insured_loss_curve(curve, deductible, insured_limit): losses, poes = curve[:, curve[0] <= insured_limit] limit_poe = interpolate.interp1d( *curve, bounds_error=False, fill_value=1)(deductible) return numpy.array([ losses, numpy.piecewise(poes, [poes > limit_poe], [limit_poe,...
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train
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gem/oq-engine
openquake/risklib/scientific.py
bcr
def bcr(eal_original, eal_retrofitted, interest_rate, asset_life_expectancy, asset_value, retrofitting_cost): """ Compute the Benefit-Cost Ratio. BCR = (EALo - EALr)(1-exp(-r*t))/(r*C) Where: * BCR -- Benefit cost ratio * EALo -- Expected annual loss for original asset * EALr -- E...
python
def bcr(eal_original, eal_retrofitted, interest_rate, asset_life_expectancy, asset_value, retrofitting_cost): return ((eal_original - eal_retrofitted) * asset_value * (1 - numpy.exp(- interest_rate * asset_life_expectancy)) / (interest_rate * retrofitting_cost))
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train
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gem/oq-engine
openquake/risklib/scientific.py
pairwise_mean
def pairwise_mean(values): "Averages between a value and the next value in a sequence" return numpy.array([numpy.mean(pair) for pair in pairwise(values)])
python
def pairwise_mean(values): "Averages between a value and the next value in a sequence" return numpy.array([numpy.mean(pair) for pair in pairwise(values)])
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train
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gem/oq-engine
openquake/risklib/scientific.py
pairwise_diff
def pairwise_diff(values): "Differences between a value and the next value in a sequence" return numpy.array([x - y for x, y in pairwise(values)])
python
def pairwise_diff(values): "Differences between a value and the next value in a sequence" return numpy.array([x - y for x, y in pairwise(values)])
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train
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gem/oq-engine
openquake/risklib/scientific.py
mean_std
def mean_std(fractions): """ Given an N x M matrix, returns mean and std computed on the rows, i.e. two M-dimensional vectors. """ n = fractions.shape[0] if n == 1: # avoid warnings when computing the stddev return fractions[0], numpy.ones_like(fractions[0]) * numpy.nan return numpy...
python
def mean_std(fractions): n = fractions.shape[0] if n == 1: return fractions[0], numpy.ones_like(fractions[0]) * numpy.nan return numpy.mean(fractions, axis=0), numpy.std(fractions, axis=0, ddof=1)
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Given an N x M matrix, returns mean and std computed on the rows, i.e. two M-dimensional vectors.
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gem/oq-engine
openquake/risklib/scientific.py
loss_maps
def loss_maps(curves, conditional_loss_poes): """ :param curves: an array of loss curves :param conditional_loss_poes: a list of conditional loss poes :returns: a composite array of loss maps with the same shape """ loss_maps_dt = numpy.dtype([('poe-%s' % poe, F32) ...
python
def loss_maps(curves, conditional_loss_poes): loss_maps_dt = numpy.dtype([('poe-%s' % poe, F32) for poe in conditional_loss_poes]) loss_maps = numpy.zeros(curves.shape, loss_maps_dt) for idx, curve in numpy.ndenumerate(curves): for poe in conditional_loss_poes: ...
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:param curves: an array of loss curves :param conditional_loss_poes: a list of conditional loss poes :returns: a composite array of loss maps with the same shape
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train
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gem/oq-engine
openquake/risklib/scientific.py
broadcast
def broadcast(func, composite_array, *args): """ Broadcast an array function over a composite array """ dic = {} dtypes = [] for name in composite_array.dtype.names: dic[name] = func(composite_array[name], *args) dtypes.append((name, dic[name].dtype)) res = numpy.zeros(dic[na...
python
def broadcast(func, composite_array, *args): dic = {} dtypes = [] for name in composite_array.dtype.names: dic[name] = func(composite_array[name], *args) dtypes.append((name, dic[name].dtype)) res = numpy.zeros(dic[name].shape, numpy.dtype(dtypes)) for name in dic: res[n...
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gem/oq-engine
openquake/risklib/scientific.py
average_loss
def average_loss(lc): """ Given a loss curve array with `poe` and `loss` fields, computes the average loss on a period of time. :note: As the loss curve is supposed to be piecewise linear as it is a result of a linear interpolation, we compute an exact integral by using the trapei...
python
def average_loss(lc): losses, poes = (lc['loss'], lc['poe']) if lc.dtype.names else lc return -pairwise_diff(losses) @ pairwise_mean(poes)
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gem/oq-engine
openquake/risklib/scientific.py
normalize_curves_eb
def normalize_curves_eb(curves): """ A more sophisticated version of normalize_curves, used in the event based calculator. :param curves: a list of pairs (losses, poes) :returns: first losses, all_poes """ # we assume non-decreasing losses, so losses[-1] is the maximum loss non_zero_cur...
python
def normalize_curves_eb(curves): non_zero_curves = [(losses, poes) for losses, poes in curves if losses[-1] > 0] if not non_zero_curves: return curves[0][0], numpy.array([poes for _losses, poes in curves]) else: max_losses = [losses[-1] for losses, _poes ...
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A more sophisticated version of normalize_curves, used in the event based calculator. :param curves: a list of pairs (losses, poes) :returns: first losses, all_poes
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train
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gem/oq-engine
openquake/risklib/scientific.py
build_loss_curve_dt
def build_loss_curve_dt(curve_resolution, insured_losses=False): """ :param curve_resolution: dictionary loss_type -> curve_resolution :param insured_losses: configuration parameter :returns: loss_curve_dt """ lc_list = [] for lt in sorted(curve_resolution): C ...
python
def build_loss_curve_dt(curve_resolution, insured_losses=False): lc_list = [] for lt in sorted(curve_resolution): C = curve_resolution[lt] pairs = [('losses', (F32, C)), ('poes', (F32, C))] lc_dt = numpy.dtype(pairs) lc_list.append((str(lt), lc_dt)) if insured_losses: ...
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:param curve_resolution: dictionary loss_type -> curve_resolution :param insured_losses: configuration parameter :returns: loss_curve_dt
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gem/oq-engine
openquake/risklib/scientific.py
return_periods
def return_periods(eff_time, num_losses): """ :param eff_time: ses_per_logic_tree_path * investigation_time :param num_losses: used to determine the minimum period :returns: an array of 32 bit periods Here are a few examples: >>> return_periods(1, 1) Traceback (most recent call last): ...
python
def return_periods(eff_time, num_losses): assert eff_time >= 2, 'eff_time too small: %s' % eff_time assert num_losses >= 2, 'num_losses too small: %s' % num_losses min_time = eff_time / num_losses period = 1 periods = [] loop = True while loop: for val in [1, 2, 5]: ...
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:param eff_time: ses_per_logic_tree_path * investigation_time :param num_losses: used to determine the minimum period :returns: an array of 32 bit periods Here are a few examples: >>> return_periods(1, 1) Traceback (most recent call last): ... AssertionError: eff_time too small: 1 >...
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train
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gem/oq-engine
openquake/risklib/scientific.py
losses_by_period
def losses_by_period(losses, return_periods, num_events=None, eff_time=None): """ :param losses: array of simulated losses :param return_periods: return periods of interest :param num_events: the number of events (>= to the number of losses) :param eff_time: investigation_time * ses_per_logic_tree_p...
python
def losses_by_period(losses, return_periods, num_events=None, eff_time=None): if len(losses) == 0: return numpy.zeros(len(return_periods)) if num_events is None: num_events = len(losses) elif num_events < len(losses): raise ValueError( 'There are not enough events ...
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:param losses: array of simulated losses :param return_periods: return periods of interest :param num_events: the number of events (>= to the number of losses) :param eff_time: investigation_time * ses_per_logic_tree_path :returns: interpolated losses for the return periods, possibly with NaN NB: t...
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train
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gem/oq-engine
openquake/risklib/scientific.py
VulnerabilityFunction.interpolate
def interpolate(self, gmvs): """ :param gmvs: array of intensity measure levels :returns: (interpolated loss ratios, interpolated covs, indices > min) """ # gmvs are clipped to max(iml) gmvs_curve = numpy.piecewise( gmvs, [gmvs > self.iml...
python
def interpolate(self, gmvs): gmvs_curve = numpy.piecewise( gmvs, [gmvs > self.imls[-1]], [self.imls[-1], lambda x: x]) idxs = gmvs_curve >= self.imls[0] gmvs_curve = gmvs_curve[idxs] return self._mlr_i1d(gmvs_curve), self._cov_for(gmvs_curve), idxs
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:param gmvs: array of intensity measure levels :returns: (interpolated loss ratios, interpolated covs, indices > min)
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train
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gem/oq-engine
openquake/risklib/scientific.py
VulnerabilityFunction.sample
def sample(self, means, covs, idxs, epsilons=None): """ Sample the epsilons and apply the corrections to the means. This method is called only if there are nonzero covs. :param means: array of E' loss ratios :param covs: array of E' floats :param id...
python
def sample(self, means, covs, idxs, epsilons=None): if epsilons is None: return means self.set_distribution(epsilons) res = self.distribution.sample(means, covs, means * covs, idxs) return res
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Sample the epsilons and apply the corrections to the means. This method is called only if there are nonzero covs. :param means: array of E' loss ratios :param covs: array of E' floats :param idxs: array of E booleans with E >= E' :param epsilons:...
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gem/oq-engine
openquake/risklib/scientific.py
VulnerabilityFunction.strictly_increasing
def strictly_increasing(self): """ :returns: a new vulnerability function that is strictly increasing. It is built by removing piece of the function where the mean loss ratio is constant. """ imls, mlrs, covs = [], [], [] previous_mlr = None ...
python
def strictly_increasing(self): imls, mlrs, covs = [], [], [] previous_mlr = None for i, mlr in enumerate(self.mean_loss_ratios): if previous_mlr == mlr: continue else: mlrs.append(mlr) imls.append(self.imls[i]) ...
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:returns: a new vulnerability function that is strictly increasing. It is built by removing piece of the function where the mean loss ratio is constant.
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train
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gem/oq-engine
openquake/risklib/scientific.py
VulnerabilityFunction.mean_loss_ratios_with_steps
def mean_loss_ratios_with_steps(self, steps): """ Split the mean loss ratios, producing a new set of loss ratios. The new set of loss ratios always includes 0.0 and 1.0 :param int steps: the number of steps we make to go from one loss ratio to the next. For examp...
python
def mean_loss_ratios_with_steps(self, steps): loss_ratios = self.mean_loss_ratios if min(loss_ratios) > 0.0: loss_ratios = numpy.concatenate([[0.0], loss_ratios]) if max(loss_ratios) < 1.0: loss_ratios = numpy.concatenate([loss_ratios,...
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Split the mean loss ratios, producing a new set of loss ratios. The new set of loss ratios always includes 0.0 and 1.0 :param int steps: the number of steps we make to go from one loss ratio to the next. For example, if we have [0.5, 0.7]:: steps = 1 produces [0.0,...
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train
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gem/oq-engine
openquake/risklib/scientific.py
VulnerabilityFunction._cov_for
def _cov_for(self, imls): """ Clip `imls` to the range associated with the support of the vulnerability function and returns the corresponding covariance values by linear interpolation. For instance if the range is [0.005, 0.0269] and the imls are [0.0049, 0.006, 0.027], ...
python
def _cov_for(self, imls): return self._covs_i1d( numpy.piecewise( imls, [imls > self.imls[-1], imls < self.imls[0]], [self.imls[-1], self.imls[0], lambda x: x]))
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Clip `imls` to the range associated with the support of the vulnerability function and returns the corresponding covariance values by linear interpolation. For instance if the range is [0.005, 0.0269] and the imls are [0.0049, 0.006, 0.027], the clipped imls are [0.005, 0.006, 0...
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gem/oq-engine
openquake/risklib/scientific.py
VulnerabilityFunction.loss_ratio_exceedance_matrix
def loss_ratio_exceedance_matrix(self, loss_ratios): """ Compute the LREM (Loss Ratio Exceedance Matrix). """ # LREM has number of rows equal to the number of loss ratios # and number of columns equal to the number of imls lrem = numpy.empty((len(loss_ratios), len(self.im...
python
def loss_ratio_exceedance_matrix(self, loss_ratios): lrem = numpy.empty((len(loss_ratios), len(self.imls))) for row, loss_ratio in enumerate(loss_ratios): for col, (mean_loss_ratio, stddev) in enumerate( zip(self.mean_loss_ratios, self.stddevs))...
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Compute the LREM (Loss Ratio Exceedance Matrix).
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gem/oq-engine
openquake/risklib/scientific.py
VulnerabilityFunction.mean_imls
def mean_imls(self): """ Compute the mean IMLs (Intensity Measure Level) for the given vulnerability function. :param vulnerability_function: the vulnerability function where the IMLs (Intensity Measure Level) are taken from. :type vuln_function: :py:class...
python
def mean_imls(self): return numpy.array( [max(0, self.imls[0] - (self.imls[1] - self.imls[0]) / 2.)] + [numpy.mean(pair) for pair in pairwise(self.imls)] + [self.imls[-1] + (self.imls[-1] - self.imls[-2]) / 2.])
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Compute the mean IMLs (Intensity Measure Level) for the given vulnerability function. :param vulnerability_function: the vulnerability function where the IMLs (Intensity Measure Level) are taken from. :type vuln_function: :py:class:`openquake.risklib.vulnerability_functio...
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gem/oq-engine
openquake/risklib/scientific.py
VulnerabilityFunctionWithPMF.interpolate
def interpolate(self, gmvs): """ :param gmvs: array of intensity measure levels :returns: (interpolated probabilities, zeros, indices > min) """ # gmvs are clipped to max(iml) gmvs_curve = numpy.piecewise( gmvs, [gmvs > self.imls[-1]], [s...
python
def interpolate(self, gmvs): gmvs_curve = numpy.piecewise( gmvs, [gmvs > self.imls[-1]], [self.imls[-1], lambda x: x]) idxs = gmvs_curve >= self.imls[0] gmvs_curve = gmvs_curve[idxs] return self._probs_i1d(gmvs_curve), numpy.zeros_like(gmvs_curve), idxs
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gem/oq-engine
openquake/risklib/scientific.py
VulnerabilityFunctionWithPMF.sample
def sample(self, probs, _covs, idxs, epsilons): """ Sample the .loss_ratios with the given probabilities. :param probs: array of E' floats :param _covs: ignored, it is there only for API consistency :param idxs: array of E booleans with E >= E' ...
python
def sample(self, probs, _covs, idxs, epsilons): self.set_distribution(epsilons) return self.distribution.sample(self.loss_ratios, probs)
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gem/oq-engine
openquake/risklib/scientific.py
FragilityFunctionList.build
def build(self, limit_states, discretization, steps_per_interval): """ :param limit_states: a sequence of limit states :param discretization: continouos fragility discretization parameter :param steps_per_interval: steps_per_interval parameter :returns: a populated FragilityFunct...
python
def build(self, limit_states, discretization, steps_per_interval): new = copy.copy(self) add_zero = (self.format == 'discrete' and self.nodamage and self.nodamage <= self.imls[0]) new.imls = build_imls(new, discretization) if steps_per_interval > 1: ...
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gem/oq-engine
openquake/risklib/scientific.py
FragilityModel.build
def build(self, continuous_fragility_discretization, steps_per_interval): """ Return a new FragilityModel instance, in which the values have been replaced with FragilityFunctionList instances. :param continuous_fragility_discretization: configuration parameter :param...
python
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gem/oq-engine
openquake/risklib/scientific.py
LossCurvesMapsBuilder.pair
def pair(self, array, stats): """ :return (array, array_stats) if stats, else (array, None) """ if len(self.weights) > 1 and stats: statnames, statfuncs = zip(*stats) array_stats = compute_stats2(array, statfuncs, self.weights) else: array_stat...
python
def pair(self, array, stats): if len(self.weights) > 1 and stats: statnames, statfuncs = zip(*stats) array_stats = compute_stats2(array, statfuncs, self.weights) else: array_stats = None return array, array_stats
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gem/oq-engine
openquake/risklib/scientific.py
LossCurvesMapsBuilder.build
def build(self, losses_by_event, stats=()): """ :param losses_by_event: the aggregate loss table with shape R -> (E, L) :param stats: list of pairs [(statname, statfunc), ...] :returns: two arrays with shape (P, R, L) and (P, S, L) """ ...
python
def build(self, losses_by_event, stats=()): P, R = len(self.return_periods), len(self.weights) L = len(self.loss_dt.names) array = numpy.zeros((P, R, L), F32) for r in losses_by_event: num_events = self.num_events[r] losses = losses_by_event[r] ...
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gem/oq-engine
openquake/risklib/scientific.py
LossCurvesMapsBuilder.build_pair
def build_pair(self, losses, stats): """ :param losses: a list of lists with R elements :returns: two arrays of shape (P, R) and (P, S) respectively """ P, R = len(self.return_periods), len(self.weights) assert len(losses) == R, len(losses) array = numpy.zeros((P,...
python
def build_pair(self, losses, stats): P, R = len(self.return_periods), len(self.weights) assert len(losses) == R, len(losses) array = numpy.zeros((P, R), F32) for r, ls in enumerate(losses): ne = self.num_events.get(r, 0) if ne: array[:, r]...
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gem/oq-engine
openquake/risklib/scientific.py
LossCurvesMapsBuilder.build_maps
def build_maps(self, losses, clp, stats=()): """ :param losses: an array of shape (A, R, P) :param clp: a list of C conditional loss poes :param stats: list of pairs [(statname, statfunc), ...] :returns: an array of loss_maps of shape (A, R, C, LI) """ shp = losse...
python
def build_maps(self, losses, clp, stats=()): shp = losses.shape[:2] + (len(clp), len(losses.dtype)) array = numpy.zeros(shp, F32) for lti, lt in enumerate(losses.dtype.names): for a, losses_ in enumerate(losses[lt]): for r, ls in enumerate(losses_): ...
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:param losses: an array of shape (A, R, P) :param clp: a list of C conditional loss poes :param stats: list of pairs [(statname, statfunc), ...] :returns: an array of loss_maps of shape (A, R, C, LI)
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gem/oq-engine
openquake/risklib/scientific.py
LossCurvesMapsBuilder.build_loss_maps
def build_loss_maps(self, losses, clp, stats=()): """ :param losses: an array of shape R, E :param clp: a list of C conditional loss poes :param stats: list of pairs [(statname, statfunc), ...] :returns: two arrays of shape (C, R) and (C, S) """ array = numpy.zero...
python
def build_loss_maps(self, losses, clp, stats=()): array = numpy.zeros((len(clp), len(losses)), F32) for r, ls in enumerate(losses): if len(ls) < 2: continue for c, poe in enumerate(clp): array[c, r] = conditional_loss_ratio(ls, self.poes, ...
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gem/oq-engine
openquake/calculators/event_based.py
store_rlzs_by_grp
def store_rlzs_by_grp(dstore): """ Save in the datastore a composite array with fields (grp_id, gsim_id, rlzs) """ lst = [] assoc = dstore['csm_info'].get_rlzs_assoc() for grp, arr in assoc.by_grp().items(): for gsim_id, rlzs in enumerate(arr): lst.append((int(grp[4:]), gsim_...
python
def store_rlzs_by_grp(dstore): lst = [] assoc = dstore['csm_info'].get_rlzs_assoc() for grp, arr in assoc.by_grp().items(): for gsim_id, rlzs in enumerate(arr): lst.append((int(grp[4:]), gsim_id, rlzs)) dstore['csm_info/rlzs_by_grp'] = numpy.array(lst, rlzs_by_grp_dt)
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gem/oq-engine
openquake/calculators/event_based.py
compute_gmfs
def compute_gmfs(rupgetter, srcfilter, param, monitor): """ Compute GMFs and optionally hazard curves """ getter = GmfGetter(rupgetter, srcfilter, param['oqparam']) with monitor('getting ruptures'): getter.init() return getter.compute_gmfs_curves(monitor)
python
def compute_gmfs(rupgetter, srcfilter, param, monitor): getter = GmfGetter(rupgetter, srcfilter, param['oqparam']) with monitor('getting ruptures'): getter.init() return getter.compute_gmfs_curves(monitor)
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gem/oq-engine
utils/combine_mean_curves.py
combine_mean_curves
def combine_mean_curves(calc_big, calc_small): """ Combine the hazard curves coming from two different calculations. The result will be the hazard curves of calc_big, updated on the sites in common with calc_small with the PoEs of calc_small. For instance: calc_big = USA, calc_small = California ...
python
def combine_mean_curves(calc_big, calc_small): dstore_big = datastore.read(calc_big) dstore_small = datastore.read(calc_small) sitecol_big = dstore_big['sitecol'] sitecol_small = dstore_small['sitecol'] site_id_big = {(lon, lat): sid for sid, lon, lat in zip( sitecol_big.sids, sitecol_b...
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gem/oq-engine
openquake/hmtk/sources/complex_fault_source.py
mtkComplexFaultSource.create_geometry
def create_geometry(self, input_geometry, mesh_spacing=1.0): ''' If geometry is defined as a numpy array then create instance of nhlib.geo.line.Line class, otherwise if already instance of class accept class :param input_geometry: List of at least two fault edges of...
python
def create_geometry(self, input_geometry, mesh_spacing=1.0): if not isinstance(input_geometry, list) or len(input_geometry) < 2: raise ValueError('Complex fault geometry incorrectly defined') self.fault_edges = [] for edge in input_geometry: if not isinstance(e...
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