#include "TProfile.h"
#include "TH2.h"
#include "TStyle.h"

void profile_rms() {
   TH2F* h2=new TH2F("h2","h2", 10,-5.,5., 1, 0.,1.);
   h2->FillRandom("gaus",500000);
   TH1D* hproj=h2->ProjectionX("projection_x", 1, 1);
   TProfile* prof=h2->ProfileY();
   TCanvas* c=new TCanvas("profileRMS", "profile and RMS");
   c->Divide(1,2);
   c->cd(1);
   gStyle->SetOptStat(111111);
   hproj->Draw();
   c->cd(2);
   prof->Draw();
}