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Enter search terms or a module, class or function name., na_action=None)[source]

Map values using input correspondence (a dict, Series, or function).


mapper : function, dict, or Series

Mapping correspondence.

na_action : {None, ‘ignore’}

If ‘ignore’, propagate NA values, without passing them to the mapping correspondence.


applied : Union[Index, MultiIndex], inferred

The output of the mapping function applied to the index. If the function returns a tuple with more than one element a MultiIndex will be returned.

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