test_from_model.py 文件源码

def test_warm_start():
    est = PassiveAggressiveClassifier(warm_start=True, random_state=0)
    transformer = SelectFromModel(estimator=est)
    transformer.fit(data, y)
    old_model = transformer.estimator_
    transformer.fit(data, y)
    new_model = transformer.estimator_
    assert_true(old_model is new_model)