pandas.MultiIndex.codes

property MultiIndex.codes

Codes of the MultiIndex.

Codes are the position of the index value in the list of level values for each level.

Returns:

tuple of numpy.ndarray

The codes of the MultiIndex. Each array in the tuple corresponds to a level in the MultiIndex.

See also

MultiIndex.set_codes

Set new codes on MultiIndex.

Examples

>>> arrays = [[1, 1, 2, 2], ["red", "blue", "red", "blue"]]
>>> mi = pd.MultiIndex.from_arrays(arrays, names=("number", "color"))
>>> mi.codes
FrozenList([[0, 0, 1, 1], [1, 0, 1, 0]])