Function to fit a histogram

ROOT
1

Hi,

This is a very basic question. I want to fit the histogram in the attachment. Could you please suggest the function ( as a rough estimate) for it ?

Thanks in advance.

Fit_JEC_up_2.gif696×472 4.74 KB

2

Hi,
This does not seem a root related question.
In any case, if you have an idea of the model you would like to fit, the ROOT class you can use to represent it is TF1 root.cern.ch/doc/master/classTF1.html
D