Hello Leslie Raillon,
See the attached workbook. I created two calcuations - one is the running total of the activations - RUNNING_SUM([Number activations]) and then I created a calculation to rank these - Rank([field],'desc').
The first calculation is set to compute using Table across - or using the Date. The rank function is set to use both Country and Date with the rank restarting for each month.
Does that supply what you are working for here?
Just one step (beyond) -- please make
the Axis for the Rank to be Reverse,
to plot the high-bumpers at the top.
Thanks to you both. It works.
Thank you for marking the post Leslie. Please come back again.