Residuals of new data to a fitted surface
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Hi all
I'm probably a bit out of my depth here, and would appreciate some help with plane fitting to 3D data and measuring distances.
I have two sets of data comprised of x, y, z coordinates. For the first set of data I fitted a plane and I can get the distances from the plane to each point from fitOutput.residuals: (unless I'm not understanding the residuals)
ft = fittype('poly11');
[fitResults, gof, fitOutput] = fit([zData, yData], xData, ft);
residuals = fitOutput.residuals;
Now I would like to get the residuals (distances) of another set of data to this same plane. I have been pouring over help files all afternoon, but with no joy.
Can anyone take pity and makes some suggestions please?
Many thanks,
Michael.
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