Find the value of the area of the XY plot (area of VI trajectory) and harmonics' amplitude value

[lst3201]

(1) I have tried to use Green' s Theorem and Polygon Area VI to do this, but it is not work, because the value is still changing when the graph is stable.

How can find the biggest area of this XY graph (shown as below red line)?

(2) I have solved the problem by using index array. Thanks a lot.

[JÞB]

Thanks for sharing your experience