This thread asks almost exactly the same question - if you combine my last posted tbwx with this calc from that page:
lookup([Ranking],first()+[Choose Week Offset]-1)
You should get where you need to be
I believe he meant to link to this thread: http://community.tableau.com/message/232032#232032
I was never able to get that parameter working, Alex Kerin If you have time to look at that again, I'd love to make it work.
Thank you very much for the reply.
I have viewed your recent activities, but I don't know which is the post you mentioned before.
Could you post the link of that thread for me, thanks a lot.
Thank you, Matthew. I will take a close look.