/Chi2Proof

Chi^2 should equal 1 in over-determined fitting; but =0 at fully-/under-determined fitting. This repo contains the proof.

Primary LanguagePython

Chi2 = 0 proof

This repository is dedicated to proving that,

in an overdetermined system, a regressor should aim to achieve chi2 = degree of freedom = number of data points - number of parameters;

in an fully-/underdetermined system, a regressor should aim to achieve chi2 = 0.