Affiliation
American Association of Variable Star Observers (AAVSO)
Sat, 01/30/2021 - 15:09
I want to be sure I am interpreting the Chi^2/dof correctly on the Fit Panel in AIJ. Is the probability associated with that Chi^2/dof and degrees of freedom the probability of obtaining the observed LC data (or any worse fitting) if the "True" LC is the model AIJ fit to the data, or does it represent something else?
Brad Walter
Hi Brad,
Regarding the underlying definition of Chi^2, see equation (5) and accompanying text in a paper by Karen Collins retrievable from the following:
https://iopscience.iop.org/article/10.3847/1538-3881/153/2/77/meta
Dennis
Thanks, Dennis.
That was exactly what I was looking for and validates my interpretation.
Brad