Numerical integration for sinsoidal wave

[pyroknife]

I have a plot with a bunch of data points. I would like to perform a numerical integration on it. I was just wondering, what method of integrating do you guys think would be best suited for a sinusoidal like curve?

 

[barryj]

Well, there is the trapezoidal rule, the midpoint rule, and the Simpson rule. I recall the Simpson rule being the best.