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Topic: 2D gaussian fitting using Surface Fitting Tool
Replies: 10   Last Post: Jan 20, 2014 11:10 AM

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Tim Balmer

Posts: 3
Registered: 6/8/10
2D gaussian fitting using Surface Fitting Tool
Posted: Jun 8, 2010 1:33 AM
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I'm trying to fit a 2D gaussian to a surface using the Surface Fitting Tool. I choose the custom equation option and enter this formula: A*exp(-x^2/(2*sigmax^2)-y^2/(2*sigmay^2))

I think that either my equation is wrong or I am not using the Surface Fitting Tool properly because it generates a flat surface that doesn't fit at all and has a negative R-square value.

Any help would be greatly appreciated!

Thanks!



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