3 Replies Latest reply on Mar 22, 2012 12:55 PM by Shawn Wallwork

    Turning Points in Trendlines

    April Hoy

      I have a line graph/area graph (haven't decided which to use) charting changes in a measure over time.  Is there any way to insert a light vertical line at a year on the axis to mark a turning point.  Basically I want to show what impact (if any) legislative changes have had on incidences of abortion.

       

      The chart titled "Number of Abortions Sought by Idahoans and Number Performed in Idaho" is the chart I'm trying to do this with.

      http://public.tableausoftware.com/views/Abortion_0/Trends?:embed=y

       

      Thanks!