Hello,
I am want to write a script so i can normalize the histograms in a .root file. i wrote the following script below, but the histograms inside the .root file are the same after i run the scripts, although the ones a plot are normalized.
the ster[] array is where i keep my histograms, and teste[] is where the name of the histograms go.
for i in range(nHistograms):
ster[i] = histFile.Get(teste[i])
f = root.TFile("mc16e-LH-CVetoBVeto.root")
w = f.Get("sumOfWeights")
ws = w.GetBinContent(1)
F = (1.01*0.85)/ws
for i in range(nHistograms):
ster[i].Scale(F/(ster[i].Integral()+1))
for i in range(nHistograms):
ster[i].SetDirectory (histFile)
ster[i].Write()
So i would appreciate any help or tips.
Best Regards,
Caio Cesar.