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Raymond Tsang


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01 Oct 2013 polyfitn Polynomial modeling in 1 or n dimensions Author: John D'Errico

Hi John,

This is a great tool! I'm using it to fit a quadratic function to a magnetic field over a 3D lattice.

I'm interested in the uncertainty in the fit parameters. Is it correct to interpret "ParameterStd" as this uncertainty? (If not, what is?) And it is a little puzzling to me as to how "ParameterStd" is determined given that I have not provided the measurement uncertainty to the code. Can you explain a little bit about how this "ParameterStd" is computed?

Thank you!

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