pandas.api.types.is_categorical

pandas.api.types.is_categorical(arr) [source]

Check whether an array-like is a Categorical instance.

Parameters:	arr : array-like The array-like to check.
Returns:	boolean : Whether or not the array-like is of a Categorical instance.

Examples

>>> is_categorical([1, 2, 3])
False

Categoricals, Series Categoricals, and CategoricalIndex will return True.

>>> cat = pd.Categorical([1, 2, 3])
>>> is_categorical(cat)
True
>>> is_categorical(pd.Series(cat))
True
>>> is_categorical(pd.CategoricalIndex([1, 2, 3]))
True