CategoricalIndex.map()

CategoricalIndex.map(mapper) [source]

Apply mapper function to its categories (not codes).

Parameters:

Parameters:	mapper : callable Function to be applied. When all categories are mapped to different categories, the result will be Categorical which has the same order property as the original. Otherwise, the result will be np.ndarray.
Returns:	applied : Categorical or np.ndarray.

mapper : callable

Function to be applied. When all categories are mapped to different categories, the result will be Categorical which has the same order property as the original. Otherwise, the result will be np.ndarray.

Returns:

applied : Categorical or np.ndarray.

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