I have a map with GDP per cap figures per country spanning the most recent five years. I have most recent year displayed on colour and another variable GDP per cap change % over last five years (tooltip). I would like viewer to have option (filter or param?) to select either colour map by GDP # or colour map by GDP % change. If user selects colour map by one variable then other variable should display in tooltip. I'm not sure how to accomplish this....
Create a parameter which is a list of your measures.
Then you create a calculated field like;
IF [parameter] = "measure1" then AVG([Measure1]) else AVG([Measure2]) END
Drop that onto the color button