pandas.core.groupby.DataFrameGroupBy.cummax

DataFrameGroupBy.cummax(axis=None, skipna=True, *args, **kwargs)

Return cumulative max over requested axis.

Parameters:	axis : {index (0), columns (1)} skipna : boolean, default True Exclude NA/null values. If an entire row/column is NA, the result will be NA
Returns:	cummax : Series