be provided in `dtype`. ordered : bool, optional Whether or not this categorical is treated as an ordered categorical. If not given here or in `dtype`, the resulting categorical will be unordered. dtype : CategoricalDtype or "category", optional If :class:`CategoricalDtype`, cannot be used together with `categories` or `ordered`. validate : bool, default True If True, validate that the codes are valid for the dtype. If False, don't validate that the codes are valid. Be careful about skipping validation, as invalid codes can lead to severe problems, such as segfaults. .. versionadded:: 2.1.0 Returns ------- Categorical Examples -------- >>> dtype = pd.CategoricalDtype(['a', 'b'], ordered=True) >>> pd.Categorical.from_codes(codes=[0, 1, 0, 1], dtype=dtype) ['a', 'b', 'a', 'b'] Categories (2, object): ['a' < 'b'] )