test_alphas.py 文件源码

def test_get_alphas_param_lassolars(self):
        """
        Assert that we can get alphas from lasso lars.
        """
        X, y = make_regression()
        model = AlphaSelection(LassoLarsCV())
        model.fit(X, y)
        try:
            malphas = model._find_alphas_param()
            self.assertTrue(len(malphas) > 0)
        except YellowbrickValueError:
            self.fail("could not find alphas on {}".format(model.name))