What most people call Chi^2, in GSAS-II is given the correct name, Reduced Chi^2, which is the GOF (Goodness of Fit) squared. In GSAS-II, Chi^2 is the sum of weight*(obs-calc)^2 for each data point (e.g. unnormalized).
Is this more clear? Brian On Sep 18, 2015, at 5:07 PM, Sergey Ushakov <svusha...@ucdavis.edu> wrote: > Hello, > > I was wondering if GOF in GSAS-II calculated the same way as Chi^2 in GSAS-I > ? > It seems there were Chi^2 and reduced CHI^2 in previous versions of GSAS-II > and now it is replaced with Chi^2 and GOF ? > > Thank you, > Sergey > > > -- > Sergey Ushakov PhD > > Staff Research Associate > Peter A Rock Thermochemistry Laboratory and NEAT ORU > University of California at Davis > > _______________________________________________ > GSAS-II mailing list > GSAS-II@mailman.aps.anl.gov > https://mailman.aps.anl.gov/mailman/listinfo/gsas-ii Brian Toby 204 Waxwing Ave Naperville IL 60565-1240 bht...@comcast.net _______________________________________________ GSAS-II mailing list GSAS-II@mailman.aps.anl.gov https://mailman.aps.anl.gov/mailman/listinfo/gsas-ii
