Python left_join_indexer_unique Examples

Example #1

File: test_join.py Project: sduzjp/Python

def test_left_join_indexer_unique():
    a = np.array([1, 2, 3, 4, 5], dtype=np.int64)
    b = np.array([2, 2, 3, 4, 4], dtype=np.int64)

    result = _join.left_join_indexer_unique(b, a)
    expected = np.array([1, 1, 2, 3, 3], dtype=np.int64)
    tm.assert_numpy_array_equal(result, expected)

Example #2

def test_left_join_indexer_unique(readonly):
    a = np.array([1, 2, 3, 4, 5], dtype=np.int64)
    b = np.array([2, 2, 3, 4, 4], dtype=np.int64)
    if readonly:
        # GH#37312, GH#37264
        a.setflags(write=False)
        b.setflags(write=False)

    result = libjoin.left_join_indexer_unique(b, a)
    expected = np.array([1, 1, 2, 3, 3], dtype=np.int64)
    tm.assert_numpy_array_equal(result, expected)