J Test, Regression, Model Selection, Statistics, Deep Dives.
X_var_names: if i > 0: fe_model_d_expr = fe_model_d_expr + ' + ' + X_var_name else: fe_model_d_expr = fe_model_d_expr + X_var_name i = i + 1 for dummy_name in unit_names[:-1]: fe_model_d_expr = fe_model_d_expr + ' + ' + dummy_name print('Regression expression of model D=\n' + fe_model_d_expr)