How to calculate the area of a XY graph

I have build a process assessment program and got stuck on it. I have a chart XY of the angles of knee hip x and need to find the area of the plotted curve. I searched the forums, but found no way to do it. Any ideas?

Green theorem comes immediately to mind:

I cut the first two points to make the graph more cyclical and 1300.36 for the answer.  That passes the eyeball test, but you should double check my implementation of rapidfire (and my memories of summary calculation).

Tags: NI Software

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