Hi Everyone,

I am hoping someone will be able help me out with a problem that I am having. I need to integrate parameters into my Tableau model in order to make it dynamic so I was refered to this video ( http://www.tableausoftware.com/about/blog/2010/10/tableau-60-what-if-modeling-parameters) and also watched all the other videos about parameters. They were all great but I really want to know how they built the model in the video above. I would like to be able to adjust my parameters and and have my past data stay static but have my projected data move. I tried imbedding IF statements into a table calculation but could only get one year of projections to move with the parameter.

Thanks,

Bryan