def prepare_for_estimate(self, specification_dict = None, specification_storage=None,
specification_table=None, dataset=None,
filter_variable="unit_price",
threshold=0):
return RegressionModelWithAdditionInitialResiduals.prepare_for_estimate(self, dataset=dataset, dataset_filter=filter_variable,
filter_threshold=threshold, specification_dict=specification_dict,
specification_storage=specification_storage,
specification_table=specification_table)
