3D Polynomial Regression

Question

I need some pointers for writing a polynomial regression routine for 3-dimensional points (i.e. find the coefficients of an X order polynomial that is fitted to a certain number of 3D points).

I've found code for 2D polynomial regression, however, I need to account for a 3rd dimension.

I'm looking for code examples and/or explanations.

take a look at http://stackoverflow.com/questions/529184/simple-multidimensional-curve-fitting — Dr. belisarius, Oct 10 '10 at 19:13
You mean fit a 2 dimensional surface of the form z = f(x,y) where f(x,y) is a bivariate polynomial? — mathematician1975, Aug 09 '12 at 14:45

score 0 · Answer 1 · answered Nov 15 '12 at 11:56

0

The MATLAB function polyfit should readily do it. http://www.mathworks.de/de/help/matlab/ref/polyfit.html

Is MATLAB available to you?

answered Nov 15 '12 at 11:56

Ludi

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3D Polynomial Regression

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