How to set changing upper/lower limit lines on graph builder

Question

Hello,

I have a simple Y vs X graph that the upper limit and lower limit are changing at different X values. Does anyone know how to do this on Graph Builder? or if there's a better way to do it?

Thanks,

Gary

bgeaibreyi · Answer

Good idea! this should work for me! thanks!

cwillden · Answer

This looks like an UWMA control chart.  You can get something like this in Graph Builder if you make the limits of X another series along with the actual data.  Here's what the result looks like.

I made the series for the upper and lower limits and simulated data, then I stacked them to get them into a single column with labels.  See the attached data tables.

Example Part 1.jmp

Example Part 2.jmp

bgeaibreyi · Answer

I'd like to produce something like attached with the two red lines being the reference lines changing against X.