[ROOT] TMultiGraph fit gives me a bad chi square.

From: Venkatesh Kaushik (venkat@hepmail.uta.edu)
Date: Mon Nov 17 2003 - 14:44:22 MET


 Hi ROOTers,
 I have two sets of data points, which I am supposed to fit straights line
 to. I try to fit both these with pol1, I observe two things
 1) the chi square / dof value is horrible.
 2) visually, i don't see the fit has done a good job.

 i am not sure what's happening. are there any default fit
 strategies/parameters that is messing up my fit?

I have attached my code and the program output for your kind perusal.
Thanks for the help.
Venkat.



Eliveonly_ecal.gif



This archive was generated by hypermail 2b29 : Thu Jan 01 2004 - 17:50:16 MET