pandas.core.groupby.GroupBy.cumsum

GroupBy.cumsum(axis=0, *args, **kwargs)

Cumulative sum for each group.

Returns

Series or DataFrame

See also

Series.groupby

Apply a function groupby to a Series.

DataFrame.groupby

Apply a function groupby to each row or column of a DataFrame.

pandas.core.groupby.GroupBy.cumprod pandas.core.groupby.GroupBy.ffill