I’m having problems with TGraphErrors class.
I’m using root 5.28 on a Mac OS X 10.6.7 machine.
Basically I have 2 problems:
I’m not able to get the axis name shown
I do not understand why after fitting the graph the function
still shows 0 as NDF (and the Chi2/NDF is indeed meaningless)
You can run the script in attachment in this way:
.L deltaNeff.C deltaNeff(4e11)
Many thanks in advance!
deltaNeff.C (3.15 KB)