Limiting portal records for charting
I have a portal that allows the user to scroll through years of utility billing histories. The portal itself displays 13 months. Although I have a chart that correctly displays monthly values for the entire history, I wish to generate a similar (and less cluttered) chart displaying ONLY the 13 months being displayed in the portal - regardless of which 13 months are displayed.
My research tends to lead me to the use of variable arrays - something I have not yet attempted. Is there a better way and, if not, how do I set up the chart axes?
Any help is GREATLY appreciated. Thanks, in advance.