4 Replies Latest reply on Nov 20, 2016 9:59 AM by alexander.turner.0

    Simple Differences Question using multiple data sources




      I use tableau occasionally so probably this is an easy one.


      I have three data sources as follows:


      1. contains polygon information to plot postal codes in Greece (using the polygon & path function, etc.)

      2. Some client data in 2016 (per post code)

      3. Some client data in 2017 (per post code)


      I'd like to calculate and plot on the map (2017-2016)/2016.


      I've tried creating a simple calculated field with the above very simple formula but it doesn't work... e.g. the plotted colors are wrong (the calculated delta percent are off..)


      Any ideas?