Pass last STD Deviation variable value to Chart

[cperez7]

Hello Everyone,

I am new to Jaspersoft Studio and I am trying to pass the last standar devaition value to a chart to simulate  LIL UIL bands which are basically CL Target +/- 1* STD devaition. The Variable at the Accumulator is showing me a value of 0.0369 but on the chart is in the group footer band but shows me the all the values from 0 to 0.0369. I am only interested in the last value.

 

This is the graph I get with the increasing Standard devaition (black series)

While below is the graph which I would like to see when  calcu;ating CL +/- 1*STD Deviation of 0.0369

 

 

 Any Pointers of how to pass the last value of the std deviation variable to resolve this would be greatly appreciated 

Thanks 

Carlos