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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

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Licensed under the 3-clause BSD License.
http://pandas.pydata.org/pandas-docs/version/0.23.4/generated/pandas.api.types.is_categorical.html