CategoricalIndex.reorder_categories(self, *args, **kwargs)[source]

Reorder categories as specified in new_categories.

new_categories need to include all old categories and no new category items.

new_categories : Index-like

The categories in new order.

ordered : bool, optional

Whether or not the categorical is treated as a ordered categorical. If not given, do not change the ordered information.

inplace : bool, default False

Whether or not to reorder the categories inplace or return a copy of this categorical with reordered categories.

cat : Categorical with reordered categories or None if inplace.

If the new categories do not contain all old category items or any new ones

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