Python ordered_left_join_int64 Examples

Example #1

def do_left_join_python(a, b, av, bv):
    indexer, mask = lib.ordered_left_join_int64(a, b)

    n, ak = av.shape
    _, bk = bv.shape
    result_width = ak + bk

    result = np.empty((result_width, n), dtype=np.float64)
    result[:ak] = av.T

    bchunk = result[ak:]
    _take_multi(bv.T, indexer, bchunk)
    np.putmask(bchunk, np.tile(mask, bk), np.nan)
    return result

Example #2

File: bench_join.py Project: 5i7788/pandas

def do_left_join_python(a, b, av, bv):
    indexer, mask = lib.ordered_left_join_int64(a, b)

    n, ak = av.shape
    _, bk = bv.shape
    result_width = ak + bk

    result = np.empty((result_width, n), dtype=np.float64)
    result[:ak] = av.T

    bchunk = result[ak:]
    _take_multi(bv.T, indexer, bchunk)
    np.putmask(bchunk, np.tile(mask, bk), np.nan)
    return result

Example #3

def do_left_join_multi_v2(a, b, av, bv):
    indexer, mask = lib.ordered_left_join_int64(a, b)
    bv_taken = bv.take(indexer, axis=0)
    np.putmask(bv_taken, mask.repeat(bv.shape[1]), np.nan)
    return np.concatenate((av, bv_taken), axis=1)

Example #4

File: bench_join.py Project: 5i7788/pandas

def do_left_join_multi_v2(a, b, av, bv):
    indexer, mask = lib.ordered_left_join_int64(a, b)
    bv_taken = bv.take(indexer, axis=0)
    np.putmask(bv_taken, mask.repeat(bv.shape[1]), np.nan)
    return np.concatenate((av, bv_taken), axis=1)