.x EsempioSimulazione.C
.q
TFile *_file0 = TFile::Open("EsempioSimulazione.root")
.sl 
.ls 
T->Draw("EVera")
T->Draw("EVera","EVera>15.&&EVera<25.")
T->Draw("EVera","EVera>15.&&EVera<25.")
T->Draw("EVera","EVera>19.&&EVera<22.")
T->Draw("EMisurata","EMisurata>19.&&EMisurata<22.")
T->Draw("EMisurata","EMisurata>0")
T->Draw("EMisurata","EMisurata>0&&EMisurata<25")
T->Draw("EVera","Id==0")
T->Draw("EVera","Id==1")
T->Draw("EVera","Id==2")
T->Draw("EVera","Id==1")
T->Draw("EMisurata","Id==1")
T->Draw("EMisurata","Id==1&&EMisurata>0")
T->Draw("EVera","Id==1&&EMisurata>0","SAME")
T->Draw("EVera>>h(100,17.,21.)","Id==2&&EMisurata>0")
T->Draw("EVera>>h1(100,19.,21.)","Id==2&&EMisurata>0")
T->Draw("EMisurata>>h1mis(100,19.,21.)","Id==2&&EMisurata>0")
.ls 
h1->Draw()
h1mis->Draw("SAME")