Classe « Categorical »

Méthode pandas.Categorical.remove_unused_categories

Signature de la méthode remove_unused_categories

def remove_unused_categories(self, inplace=<object object at 0x7f5051439e10>) 

Description

remove_unused_categories.__doc__

        Remove categories which are not used.

        Parameters
        ----------
        inplace : bool, default False
           Whether or not to drop unused categories inplace or return a copy of
           this categorical with unused categories dropped.

           .. deprecated:: 1.2.0

        Returns
        -------
        cat : Categorical or None
            Categorical with unused categories dropped or None if ``inplace=True``.

        See Also
        --------
        rename_categories : Rename categories.
        reorder_categories : Reorder categories.
        add_categories : Add new categories.
        remove_categories : Remove the specified categories.
        set_categories : Set the categories to the specified ones.