Document

remove_categories(self, removals, inplace=<no_default>)

:None:None:`removals` must be included in the old categories. Values which were in the removed categories will be set to NaN

Parameters

removals : category or list of categories: The categories which should be removed.
inplace : bool, default False: Whether or not to remove the categories inplace or return a copy of this categorical with removed categories.

deprecated

Raises

ValueError: If the removals are not contained in the categories

Returns

cat : Categorical or None: Categorical with removed categories or None if inplace=True .

Remove the specified categories.

Examples

This example is valid syntax, but we were not able to check execution

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

This example is valid syntax, but we were not able to check execution

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

See :

Back References

The following pages refer to to this document either explicitly or contain code examples using this.

pandas.core.arrays.categorical.Categorical.set_categories pandas.core.arrays.categorical.Categorical.add_categories pandas.core.arrays.categorical.Categorical.rename_categories pandas.core.arrays.categorical.Categorical.remove_unused_categories pandas.core.arrays.categorical.Categorical.reorder_categories

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