Class MultiIndex

pandas/core/indexes/multi.py:197–4631

A multi-level, or hierarchical, index object for pandas objects. Parameters ---------- levels : sequence of arrays The unique labels for each level. codes : sequence of arrays Integers for each level designating which label at each location. sortorder : opti

@set_module("pandas")
class MultiIndex(Index):
    """
    A multi-level, or hierarchical, index object for pandas objects.

    Parameters
    ----------
    levels : sequence of arrays
        The unique labels for each level.
    codes : sequence of arrays
        Integers for each level designating which label at each location.
    sortorder : optional int
        Level of sortedness (must be lexicographically sorted by that
        level).
    names : optional sequence of objects
        Names for each of the index levels. (name is accepted for compat).
    copy : bool, default False
        Copy the meta-data.
    name : Label
        Kept for compatibility with 1-dimensional Index. Should not be used.
    verify_integrity : bool, default True
        Check that the levels/codes are consistent and valid.

    Attributes
    ----------
    names
    levels
    codes
    nlevels
    levshape
    dtypes

    Methods
    -------
    from_arrays
    from_tuples
    from_product
    from_frame
    set_levels
    set_codes
    to_frame
    to_flat_index
    sortlevel
    droplevel
    swaplevel
    reorder_levels
    remove_unused_levels
    get_level_values
    get_indexer
    get_loc
    get_locs
    get_loc_level
    drop

    See Also
    --------
    MultiIndex.from_arrays  : Convert list of arrays to MultiIndex.
    MultiIndex.from_product : Create a MultiIndex from the cartesian product
                              of iterables.