find average value of a bell shaped curve

[altenbach]

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ABM26 wrote:
Thanks for looking into this....I need the average value of the 2D plot.....

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This is not a very clear requirement, so please clarify!

To calculate the average of all Z values in a 2D array, you would simply use Ravens suggestion above. This is a model-free solution and we don't care if it is a bell curve or just some random noise. I thought a fit to a 2D gaussian would be what you actually want, but who knows?

Please tell us a little bit more about your application. What is the data all about? What kind of information do you want to get from it and why? 😉