test_indexing.py 文件源码

def test_reindex_nearest(self):
        s = Series(np.arange(10, dtype='int64'))
        target = [0.1, 0.9, 1.5, 2.0]
        actual = s.reindex(target, method='nearest')
        expected = Series(np.around(target).astype('int64'), target)
        assert_series_equal(expected, actual)

        actual = s.reindex_like(actual, method='nearest')
        assert_series_equal(expected, actual)

        actual = s.reindex_like(actual, method='nearest', tolerance=1)
        assert_series_equal(expected, actual)

        actual = s.reindex(target, method='nearest', tolerance=0.2)
        expected = Series([0, 1, np.nan, 2], target)
        assert_series_equal(expected, actual)