CategoricalIndex.nbytes return the number of bytes in the underlying data

CategoricalIndex.where(cond, other=None)

CategoricalIndex.copy(name=None, deep=False, dtype=None, **kwargs)

CategoricalIndex.is_monotonic alias for is_monotonic_increasing (deprecated)

CategoricalIndex.groupby(values)

CategoricalIndex.reorder_categories(*args, **kwargs)

CategoricalIndex.argsort(*args, **kwargs)

CategoricalIndex.get_duplicates()

CategoricalIndex.to_datetime(dayfirst=False)

CategoricalIndex.drop_duplicates(*args, **kwargs)