Hi Guys
With the advent of Tableau 8.1, a new graph feature was introduced which is the boxplot. In all honesty, even I do not know how to effectively use that chart type yet. I'm so glad of this good blog by Tom Hopper explaining the intricate details of the boxplot. Have a look at the entry below:
http://tomhopper.me/2014/07/04/the-most-useful-data-plot-youve-never-used/