Hi TS,
Thanks for the link, but it's not clear how to execute step-by-step...looks like a bunch of code and no idea how to proceed?!?. I'm looking to compute areas of slices under this curve generated by x-y data; for example, the area from 80-90 along x,
or the area of 90-115 along x. Specific regions (slices or fractions) in x are of interest. I think this can be done relatively easily in Excel via ((y2+y1)/2)*(x2-x1) however JMP may provide a better solution.