tracts.driver_utils.parse_start_params

parse_start_params(start_param_bounds, repetitions=1, seed=None, model=None)

Produces a 1-dimensional array of starting parameters for optimization in physical units, for every parameter in base_model_parameters.

Parameters:

• start_param_bounds (An object containing attributes corresponding to each parameter in model.model_base_parameters, where the value of each attribute is either a single number (if the starting value for that parameter should be fixed) or a string of the form "min:max" specifying the range from which to sample starting values for that parameter. The parameters specified in start_param_bounds must match those in model.model_base_parameters, and an error will be raised if any parameters are missing or if any extra parameters are included.)

• repetitions (int)

• seed (float)

• model (ParametrizedDemography)

Returns:

list[np.ndarray]

Return type:

A list of arrays of starting parameters in physical units, where each array corresponds to a set of starting parameters for one repetition of the optimization. The parameters are ordered according to their order in model.model_base_parameters.