Jerry suggested two very good options. There are other options if you want a more formulaic form for the model.The curve toolbar in the current version allows you to snap surfaces to data, not just curves.
Or install a 2-dimensional polynomial model using a tool such as polyfitn .
, . , lsqnonlin lsqcurvefit, 2- ( ) . , , nlinfit.
, Radial Basis Functions.
- , Neural Network Toolbox
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