3 Replies Latest reply on Nov 2, 2016 9:35 AM by giles.somers.1

    MAX([Date]) in calcs to generate 12 month average up to last data date




      I am having trouble getting Tableau to find the last date (month) in a data set, to then go back and calculate a 12 month average.


      There are calculations for the rolling 12 month average using TODAY(), but if the data are not that current, this isn't quite right.


      I've seen a way using a parameter to specify what the last data value is. Ideally though, I'd have the view automated, so that MAX of the date identifies where the average should run back from.


      Does anyone have ideas for getting around this please?

      I have tried a whole manner of approaches. They usually fall down on Tableau not allowing aggregates.


      Is there a way of using MAX [Date] or some alternative to create a 12 month average value that remains current?