def __init__(self, model, params, normalized_cov_params, scale):
     super(RLMResults, self).__init__(model, params,
             normalized_cov_params, scale)
     self.model = model
     self.df_model = model.df_model
     self.df_resid = model.df_resid
     self.nobs = model.nobs
     self._cache = resettable_cache()
 def __init__(self, model, params, normalized_cov_params=None, scale=1.):
     super(RegressionResults, self).__init__(model, params,
                                              normalized_cov_params,
                                              scale)
     self._cache = resettable_cache()