4 Replies Latest reply on Feb 1, 2013 1:07 PM by Carlo Innocenti

    How to display a graph of "active events" over time

    Carlo Innocenti

      Probably a very naive question; but here you go: I have data in this shape:

      startedfinishedname
      1/1/20131/8/2013a
      1/4/20131/7/2013b
      1/9/2013
      c

       

      I need to create a chart which describes the number of "open events" (events which have "started", but haven't "finished" yet at that point) for each day in the month; so, I would expect a chart which one entry for each day 1/1 to 1/31, where between 1/1 and 1/3 the chart is at 1; between 1/4 and 1/6 the chart is at 2; on 1/7 it's at 1; on 1/8 it's at 0; from 1/9 on it's at 1.

       

      How can I achieve that in Tableau?

       

      Thanks!