test_generic.py 文件源码

def test_interp_limit_to_ends(self):
        # These test are for issue #10420 -- flow back to beginning.
        s = Series([np.nan, np.nan, 5, 7, 9, np.nan])

        expected = Series([5., 5., 5., 7., 9., np.nan])
        result = s.interpolate(method='linear', limit=2,
                               limit_direction='backward')
        assert_series_equal(result, expected)

        expected = Series([5., 5., 5., 7., 9., 9.])
        result = s.interpolate(method='linear', limit=2,
                               limit_direction='both')
        assert_series_equal(result, expected)