Simultaneously fit multiple datasets

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Simon
Simon on 11 Apr 2017
Hi, I know that there is different solution on this topic out there but none that I have found helpful. Hence, my question is how to I fit several data sets simultaneously?
I have vectors x1, y1 and z1 which corresponds to several points (x,y,z). I have several of these vectors i.e. (x2,y2,z2), (x3,y3,z3) and so on. Each of these sets corresponds to points on a line along a surface. My objective is to fit all of this points so that I could get an analytical expression of the surface. Hence, I need to figure out how one would fit multiple sets of data at the same time.

Answers (1)

Vandana Ravichandran
Vandana Ravichandran on 13 Apr 2017
You can combine the multiple dataset vectors into a single large dataset [X Y Z] where X = [x1 x2 ..] Y = [y1 y2 ..] and so on. You can use the "fit" function from the Curve Fitting Toolbox to fit a surface to your data based on a model type. Refer this page from documentation for more on "fit":

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