MonoJet_Analysis/utility.cc at master · simoneg90/MonoJet_Analysis · GitHub

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//Questo programma contiene funzioni utili all'esecuzione di analisi

#include <stdlib.h>
#include <iostream>
#include <string.h>
#include "TH1D.h"
#include "TH1F.h"
#include "TH2D.h"
#include "TH2F.h"
#include "TCanvas.h"

//Questa funzione serve per creare spazio tra una stampa ed un'altra
void breakLine(){

  std::cout<<""<<std::endl;
  std::cout<<"++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"<<std::endl;
  std::cout<<""<<std::endl;

}

//Questa funzione stampa una stringa all'interno di un riquadro
void frame(std::string stringa){

  std::cout<<""<<std::endl;
  for (int i=0; i<(stringa.size()+6); ++i){
    std::cout<<"+";
  }
  std::cout<<""<<std::endl;
  std::cout<<"+  "<<stringa.c_str()<<"  +"<<std::endl;
  for(int i=0; i<(stringa.size()+6); ++i){
    std::cout<<"+";
  }
  std::cout<<"\n"<<std::endl;

}

//Questa funzione implementa le caratteristiche di un istogramma TH1D
void TH1D_config(TH1D *histo, const char* title, const char* title_x, const char* title_y, int color){

  std::string x="";
  x+=title_x;

  if(strcmp(x.c_str(),"Eta")==0)x="#eta";
  if(strcmp(x.c_str(),"Phi")==0)x="#Phi";
  if(strcmp(x.c_str(),"Pt")==0)x="Pt [GeV]";
  histo->SetTitle(title);
  histo->GetXaxis()->SetTitle(x.c_str());
  histo->GetYaxis()->SetTitle(title_y);
  histo->SetLineColor(color);
  histo->SetMarkerColor(color);

}

//Questa funzione implementa le caratteristiche di un istogramma TH1F
void TH1F_config(TH1F *histo, const char* title, const char* title_x, const char* title_y, int color){

  std::string x="";

  if(strcmp(x.c_str(),"Eta")==0)x="#eta";
  if(strcmp(x.c_str(),"Phi")==0)x="#Phi";
  if(strcmp(x.c_str(),"Pt")==0)x="Pt [GeV]";
  histo->SetTitle(title);
  histo->GetXaxis()->SetTitle(x.c_str());
  histo->GetYaxis()->SetTitle(title_y);
  histo->SetLineColor(color);
  histo->SetMarkerColor(color);

}

//Questa funzione implementa le caratteristiche di un istogramma TH2D
void TH2D_config(TH2D *histo, const char* title, const char* title_x, const char* title_y, int color){

  histo->SetTitle(title);
  histo->GetXaxis()->SetTitle(title_x);
  histo->GetYaxis()->SetTitle(title_y);
  histo->SetLineColor(color);
  histo->SetMarkerColor(color);

}

//Questa funzione implementa le caratteristiche di un istogramma TH2F
void TH2F_config(TH2F *histo, const char* title, const char* title_x, const char* title_y, int color){

  histo->SetTitle(title);
  histo->GetXaxis()->SetTitle(title_x);
  histo->GetYaxis()->SetTitle(title_y);
  histo->SetLineColor(color);
  histo->SetMarkerColor(color);

}

//Questa funzione analizza gli istogrammi all'interno di un file.root e li scrive su un file di output
void LS_config(std::string rootFile, std::string outfile){

  std::cout<<"Removing old config file: "<<outfile.c_str()<<std::endl;
  system(Form("rm -rf %s",outfile.c_str()));
  std::cout<<"Root File analyzed: "<<rootFile.c_str()<<std::endl;
  system(Form("./ls_script.sh %s | tee %s",rootFile.c_str(),outfile.c_str()));

}

//Questa funzione calcola il numero di eventi presenti in un istogramma - ATTENZIONE alla variabile che si usa  per l'hist!!!
double yield(const char* path, const char* cut, double rescale = 1.0, const char* treename){

  TFile* file = new TFile(path);
  TTree* tree = (TTree*)file->Get(treename);
  if (!tree) tree = (TTree*)file->Get("tree");
  TH1D *hist= new TH1D ("hist","hist",1,0,2000);
  tree->Project("hist","njets", cut);
  //tree->Draw("njets>>hist(1, 0, 2000)", cut); //da non includere
  //tree->Draw("signaljetpt>>hist(1, 0, 2000)", cut);
  //TH1* hist = (TH1F*)gDirectory->Get("hist");  //da non includere
  hist->Scale(rescale);
  //double yld = hist->GetBinContent(1);
  double yld = hist->Integral();
  file->Close();
  return yld;

}

//Questa funzione calcola il numero di eventi presenti in un istogramma - ATTENZIONE alla variabile che si usa  per l'hist!!!
std::pair<double, double> yieldwitherror(const char* path, const char* cut, double rescale = 1.0, const char* treename = "tree/tree", const char* histname = "hist") {

  TFile* file = new TFile(path);
  TTree* tree = (TTree*)file->Get(treename);
  if (!tree) tree = (TTree*)file->Get("tree");
  TH1F* hist = new TH1F("hist", "hist", 1, 0, 2000);
  tree->Project("hist","njets", cut);
  hist->Scale(rescale);
  double yld = hist->GetBinContent(1);
  double ylderr = hist->GetBinError(1);
  file->Close();
  return std::pair<double, double>(yld, ylderr);
}


//Questa funzione fa il rapporto tra due numeri
double Ratio(double a, double b){

  //std::cout<<" "<<a/b<<std::endl;
  return a/b;

}