gfail.models.zhu_2017

class gfail.models.zhu_2017.Zhu2017Model(shakefile, config, bounds=None, uncertfile=None, trimfile=None, slopefile=None, saveinputs=False)

Bases: LogisticModelBase

Initialize LogisticModelBase object.

Parameters

• shakefile (str) – Path to ShakeMap grid.xml file.

• config (dict) – Dict like object as a result of reading in “logbase” format INI files.

• bounds (dict) – Fields are ‘xmin’, ‘xmax’, ‘ymin’, ‘ymax’.

• uncertfile (str) – Path to ShakeMap uncertainty.xml file.

• trimfile (str) – Path to shapefile to use for masking ocean pixels.

• slopefile (str) – File containing slope data to be used for slope masking.

• saveinputs (bool) – Save input layer grids with model output.

Notes: All input data grids are loaded in one at a time, and saved to a temporary folder that is deleted when the object is deleted. The file names loaded are stored in the self.layers dictionary.

COEFFS = {'b0': 8.801, 'b1': 0.334, 'b2': -1.918, 'b3': 0.0005408, 'b4': -0.2054, 'b5': -0.0333}

TERMS = {'b1': 'np.log(pgv._data*(1/(1+np.power(2.71828,-2*(MW-6)))))', 'b2': 'np.log(vs30._data)', 'b3': 'precip._data', 'b4': 'np.minimum(dc._data, dr._data)', 'b5': 'wtd._data'}

TERMLAYERS = {'b1': 'pgv', 'b2': 'vs30', 'b3': 'precip', 'b4': 'dc, dr', 'b5': 'wtd'}

pre_process(key, grid)

This method should be implemented by child classes.

modify_slope(slope)

Perform modifications to slope to convert to degrees.

calculate_coverage(P)

This method should be implemented by child classes.

calculate_uncertainty()

This method should be implemented by child classes.

modify_probability(P)

This method should be implemented by child classes.