pandas.errors.UnsupportedFunctionCall — pandas 3.0.0rc0+40.gecf28e538a documentation (original) (raw)

exception pandas.errors.UnsupportedFunctionCall[source]#

Exception raised when attempting to call a unsupported numpy function.

For example, np.cumsum(groupby_object).

See also

DataFrame.groupby

Group DataFrame using a mapper or by a Series of columns.

Series.groupby

Group Series using a mapper or by a Series of columns.

core.groupby.GroupBy.cumsum

Compute cumulative sum for each group.

Examples

df = pd.DataFrame( ... {"A": [0, 0, 1, 1], "B": ["x", "x", "z", "y"], "C": [1, 2, 3, 4]} ... ) np.cumsum(df.groupby(["A"])) Traceback (most recent call last): UnsupportedFunctionCall: numpy operations are not valid with groupby. Use .groupby(...).cumsum() instead