pandas.Categorical.remove_categories — pandas 3.0.0.dev0+2099.g3832e85779 documentation (original) (raw)

Categorical.remove_categories(removals)[source]#

Remove the specified categories.

The removals argument must be a subset of the current categories. Any values that were part of the removed categories will be set to NaN.

Parameters:

removalscategory or list of categories

The categories which should be removed.

Returns:

Categorical

Categorical with removed categories.

Raises:

ValueError

If the removals are not contained in the categories

Examples

c = pd.Categorical(["a", "c", "b", "c", "d"]) c ['a', 'c', 'b', 'c', 'd'] Categories (4, object): ['a', 'b', 'c', 'd']

c.remove_categories(["d", "a"]) [NaN, 'c', 'b', 'c', NaN] Categories (2, object): ['b', 'c']