def setupClass(cls): from results.results_regression import LongleyRTO data = longley.load() res1 = OLS(data.endog, data.exog).fit() res2 = LongleyRTO() res2.wresid = res1.wresid # workaround hack cls.res1 = res1 cls.res2 = res2 res_qr = OLS(data.endog, data.exog).fit(method="qr") cls.res_qr = res_qr