Series.cat.rename_categories(*args, **kwargs) Renames categories.
The new categories has to be a list-like object. All items must be unique and the number of items in the new categories must be the same as the number of items in the old categories.
| Parameters: |
new_categories : Index-like The renamed categories. inplace : boolean (default: False) Whether or not to rename the categories inplace or return a copy of this categorical with renamed categories. |
|---|---|
| Returns: |
cat : Categorical with renamed categories added or None if inplace. |
| Raises: |
ValueError If the new categories do not have the same number of items than the current categories or do not validate as categories |
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http://pandas.pydata.org/pandas-docs/version/0.18.1/generated/pandas.Series.cat.rename_categories.html