I have a dataframe with multiple accounts across the last few years and am trying to get the rolling average of a column, per account, which is easy enough. However I also need to have the min_periods be variable. I have a column for the min_periods in the dataframe (minuploads) and the window is always 10. I just cannot find how to go about doing this. End of the day, I am trying to take a rolling average of the last 10 values, and each account falls into a different sort of category which requires a different minimum number of previous values which I have set as minuploads. If there are not enough previous values, I dont want the rolling average to calculate and will use a modeled value for those rows.