pandas.core.groupby.DataFrameGroupBy.cumsum

DataFrameGroupBy. cumsum ( axis=0, *args, **kwargs ) [source]

Cumulative sum for each group.

Returns

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.

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https://pandas.pydata.org/pandas-docs/version/1.4.0/reference/api/pandas.core.groupby.DataFrameGroupBy.cumsum.html