hi everybody
i want to read two different variables from two different trees and then take thier difference and histogram it!!Howz that possible
is it possible to do this way:
for (Int_t iev=0;iev < nev ;iev++){
t1->GetEntries(i)
t2->GetEntries(i)
and then get the necessary thing..........
}
THIS WAY IT DOESNT WORK!!!!
thanks in ADVANCE!!!