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  * __
  * [ pandas.CategoricalIndex ](pandas.CategoricalIndex.html)
  * pandas.Categ... 

#  pandas.CategoricalIndex.rename_categories  #

CategoricalIndex.  rename_categories  (  _ *  args  _ , _ **  kwargs  _ )  [
[source]  ](https://github.com/pandas-
dev/pandas/blob/v2.2.2/pandas/core/indexes/extension.py#L92-L102) #

    

Rename categories.

Parameters  :

    

**new_categories** list-like, dict-like or callable

    

New categories which will replace old categories.

  * list-like: all items must be unique and the number of items in the new categories must match the existing number of categories. 

  * dict-like: specifies a mapping from old categories to new. Categories not contained in the mapping are passed through and extra categories in the mapping are ignored. 

  * callable : a callable that is called on all items in the old categories and whose return values comprise the new categories. 

Returns  :

    

Categorical

    

Categorical with renamed categories.

Raises  :

    

ValueError

    

If new categories are list-like and do not have the same number of items than
the current categories or do not validate as categories

See also

[ ` reorder_categories  `
](pandas.Catego