pandas.core.groupby.DataFrameGroupBy.cummin

DataFrameGroupBy.cummin(axis=None, skipna=True, *args, **kwargs)
Return cumulative minimum 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:

cummin : Series