Since VF("/net08")/VF("/net7") is a set of complex values, you just need to do :
I think you don't need more. But if you do, ask for more
Perhaps xmax is what you want then? (note, I did not read through your entire question)
Thank you Andrew.
I will experiment with xmax over the weekend and report back.
It turned out that I needed to use combinations of ymax(xmax(xmax(wave))) to get the different parameter values that proudeced the maximum.