Fit and Polyfit (LAR vs. Least squares)

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sks
sks 2013-7-4
I am trying to better understand the difference between fit and polyfit. Am I right to think that fit for polynomials still uses the least absolute residual robust (LAR) method rather than the least squares method (polyfit)?

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Guru
Guru 2013-7-4
You can find out by asking for the output argument:
[fitobject,gof,output] = fit(x,y,fitType)
output.algorithm
But the real difference between fit and polyfit are the options that you can choose as well as polyfit is strictly limited to polynomials and uses the least squares method.

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