@cache_readonly
    def bse_fe(self):
        p = self.model.exog.shape[1]
        return np.sqrt(np.diag(self.cov_params())[0:p])
Returns the standard errors of the fixed effect regression
dataset/ETHPy150Open statsmodels/statsmodels/statsmodels/regression/mixed_linear_model.py/MixedLMResults.bse_fe