Showing a Quarter's Total Based on Month Selection
I am trying to find a way to use the data from an entire quarter in the chart calculation based only on a month selection. For instance, if i have February 2016 selected as my filter, I would like the chart to display data from January, February, and March of 2016. If I select April 2016, I would like the chart to display data from April, May, and June of 2016. Is there a way to do this in the expression of the chart?