test_ransac.py 文件源码

def test_ransac_resid_thresh_no_inliers():
    # When residual_threshold=0.0 there are no inliers and a
    # ValueError with a message should be raised
    base_estimator = LinearRegression()
    ransac_estimator = RANSACRegressor(base_estimator, min_samples=2,
                                       residual_threshold=0.0, random_state=0)

    assert_raises_regexp(ValueError,
                    "No inliers.*residual_threshold.*0\.0",
                    ransac_estimator.fit, X, y)