could a non linear surface be fitted to a scattered data?
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Hi, i have a scattered data [x, y, z], not gridded. i would like to fit a surface to that data, although i dont what that surface to be linear. maybe some sort of a curved surface. is that possible?
i use those comand now:
---------------------
ft = fittype( 'poly11' );
opts = fitoptions( 'Method', 'LinearLeastSquares' );
opts.Normalize = 'on';
opts.Robust = 'LAR';
[fitresult, gof] = fit( [Rdata(:,1), Rdata(:,2)], Rdata(:,3), ft, opts );
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but they only allows me to create some sort of linear surface.
thank you for your help.
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