Jeng/scripts/skim.C

#define skim_cxx
#include "skim.h"
#include <TH2.h>
#include <THStack.h>
#include <TStyle.h>
#include <TCanvas.h>
#include <TMath.h>
#include <TMultiGraph.h>
#include <TGraphErrors.h>
#include <TCanvas.h>
#include "Math/GSLIntegrator.h"
#include "Math/WrappedTF1.h"
#include <iostream>
#include <TLegend.h>
#include <TPaveStats.h>
#include <TTree.h>

TString fileName = "skimmed/QCDbin4_OldRelIso_rebin.root";
// TString fileName = "skimmed/QCDbin4_OldRelIso_FastSim.root";
bool FastSim = false;
TString isoname = "Old";
// Jet bin:
Int_t jbin = 4; // 1-3, 4 for >=4. Put in number less than 5
double binwidth = 0.02; // 0.02,0.02,0.05,0.1 for New RelIso
// Histo range
double xMin = 0.0;
double xMax = 0.0;
// Specify fitting function:
// Select New or Old reliso:
double d0sigCut = 3.;

Int_t fjbin;
Double_t fna; // Num of QCD events in signal region

int nbin;

void skim::Loop()
{
  //   In a ROOT session, you can do:
  //      Modify jbin, binwidth, wxmin, wxmax
  //      Root > .L skim.C++
  //      Root > skim t
  //      Root > t.GetEntry(12); // Fill t data members with entry number 12
  //      Root > t.Show();       // Show values of entry 12
  //      Root > t.Show(16);     // Read and show values of entry 16
  //      Root > t.Loop();       // Loop on all entries

  if ( isoname.Contains("Old") ) {
    xMax = 1+binwidth;
    nbin = (1.0-xMin)/binwidth+1;
  }
  else if ( isoname.Contains("New") ) {
    xMax = 2.0;
    nbin = (xMax-xMin)/binwidth;
  }
  else {
    cout << "No Rel Iso defined!" << endl;
    return;
  }
  cout << "nbin for histo = " << nbin << endl;
  TTree *ftree = new TTree("myTree","myTree");
  ftree->AutoSave();
  ftree->Branch("jbin",&fjbin,"jbin/I");
  ftree->Branch("na",&fna,"na/D");
  ftree->SetBranchAddress("jbin",&fjbin);
  ftree->SetBranchAddress("na",&fna);
  
  TH1D *h_RelIso_ttbar = new TH1D("h_RelIso_ttbar","h_RelIso_ttbar",nbin,xMin,xMax);
  TH1D *h_RelIso_qcd = new TH1D("h_RelIso_qcd","h_RelIso_qcd",nbin,xMin,xMax);
  TH1D *h_RelIso_wjets = new TH1D("h_RelIso_wjets","h_RelIso_wjets",nbin,xMin,xMax);
  TH1D *h_RelIso_zjets = new TH1D("h_RelIso_zjets","h_RelIso_zjets",nbin,xMin,xMax);
  TH1D *h_RelIso_all = new TH1D("h_RelIso_all","h_RelIso_all",nbin,xMin,xMax);
    
  // define fit region:
  double AX0 = 0.;
  double AXf = 0.;
  
  cout<<"Use "<<isoname<<" RelIso"<<endl;
  
  if ( isoname.Contains("Old") ) {
    // old
    AX0 = 0.95;
    AXf = 1.0;
  }
  else if ( isoname.Contains("New") ) {
    // new
    AX0 = 0.0;
    AXf = 0.053; // default:0.053 ; loose:0.11
  }
  
  // Weights:
  double wttbar,wqcd,wwjets,wzjets;
  wttbar = wqcd = wwjets = wzjets = 0.;
  if ( ! FastSim ) {
    cout << "Full sim sample weights used " << endl;
    // Full Sim
    wttbar = 0.0101;
    wqcd   = 1.3161;
    wwjets = 0.0977;
    wzjets = 0.078;
  }
  else {
    // Fast Sim
    cout << "Fast sim sample weights used " << endl;
    wttbar = 0.0008;
    wqcd   = 0.676;
    wwjets = 0.0091;
    wzjets = 0.0094;
  }
  
  // Na = num of qcd in signal region
  double Na;
  Na = 0;
  
  double Nttbar, NWjets, NZjets, Nqcd;
  Nttbar = NWjets = NZjets = Nqcd = 0;
  double reliso = 0.0;
  
  if (fChain == 0) return;
  
  Long64_t nentries = fChain->GetEntriesFast();
  
  Long64_t nbytes = 0, nb = 0;
  for (Long64_t jentry=0; jentry<nentries;jentry++) {
    Long64_t ientry = LoadTree(jentry);
    if (ientry < 0) break;
    nb = fChain->GetEntry(jentry);   nbytes += nb;
    // if (Cut(ientry) < 0) continue;
    bool signalRegion = false;
    
    TString filename(fChain->GetCurrentFile()->GetName());
    if (isoname.Contains("Old")) {
      reliso = top_muon_old_reliso[0];
      if ( reliso > AX0 ) signalRegion = true;
    }
    else if (isoname.Contains("New")) {
      reliso = top_muon_new_reliso[0];
      if ( reliso < AXf ) signalRegion = true;
    }
    else {
      cout<<"No RelIso defined!!!"<<endl;
      return;
    }

    double d0sig = TMath::Abs(top_muon_d0[0])/top_muon_d0Error[0];
    bool correctBin = false; // jet bin condition
    bool goodD0sig = false; // d0sig condition

    if ( jbin > 4 ) {cout<<"Don't mess around!!! jbin should be less than 5!"<<endl;return;}
    if (top_njets == jbin && jbin != 4) correctBin = true;
    else if (top_njets >= jbin && jbin == 4) correctBin = true;
    if ( d0sig < d0sigCut ) goodD0sig = true;
    
    // Counting
    if( correctBin && goodD0sig ) {
      if ( filename.Contains("TT") ) {
        h_RelIso_ttbar->Fill(reliso);
        if ( signalRegion ) { Nttbar += wttbar; }
      }
      if ( filename.Contains("Mu") ) {
        h_RelIso_qcd->Fill(reliso);
        if ( signalRegion ) { Na += wqcd; Nqcd+= wqcd; } // QCD in signal region
      }
      if ( filename.Contains("WJets") ) {
        h_RelIso_wjets->Fill(reliso);
        if ( signalRegion ) { NWjets += wwjets; }       
      }
      if ( filename.Contains("ZJets") ) {
        h_RelIso_zjets->Fill(reliso);
        if ( signalRegion ) { NZjets += wzjets; }
      }
    }
  }
  fjbin=jbin;
  fna=Na;
  ftree->Fill();
  cout << "\n";
  cout << " N ttbar = " << Nttbar << endl;
  cout << " N qcd = " << Nqcd << endl;
  cout << " N Wjets = " << NWjets << endl;
  cout << " N Zjets = " << NZjets << endl << endl;

  TFile *file0 = new TFile(fileName,"RECREATE");
  file0->mkdir("histos");
  file0->mkdir("hstack");
  file0->cd("histos");  
  TCanvas *cv1 = new TCanvas("cv1","cv1",800,600);  
  THStack *hs = new THStack("hs","RelIso (stacked)");
  
  // Take care of scaling
  h_RelIso_qcd->Scale(wqcd);
  h_RelIso_wjets->Scale(wwjets);
  h_RelIso_zjets->Scale(wzjets);
  h_RelIso_ttbar->Scale(wttbar);

  // Save for later use
  h_RelIso_ttbar->Write();
  h_RelIso_qcd->Write();
  h_RelIso_wjets->Write();
  h_RelIso_zjets->Write();
  
  h_RelIso_qcd->SetXTitle("Combined Relative Isolation");
  h_RelIso_qcd->SetLineColor(40);
  h_RelIso_qcd->SetFillStyle(3018);
  h_RelIso_qcd->SetFillColor(38);
  hs->Add(h_RelIso_qcd);
  h_RelIso_wjets->SetMarkerColor(4);
  h_RelIso_wjets->SetLineColor(4);
  h_RelIso_wjets->SetFillColor(4);
  hs->Add(h_RelIso_wjets);
  h_RelIso_zjets->SetMarkerColor(5);
  h_RelIso_zjets->SetLineColor(5);
  h_RelIso_zjets->SetFillColor(5);
  hs->Add(h_RelIso_zjets);
  h_RelIso_ttbar->SetMarkerColor(2);
  h_RelIso_ttbar->SetLineColor(2);
  h_RelIso_ttbar->SetFillColor(2);
  hs->Add(h_RelIso_ttbar);
  hs->Draw();

  // Label histo
  TLegend * leg0 = new TLegend(0.3,0.3,0.6,0.55);
  leg0->AddEntry(h_RelIso_ttbar,"t#bar{t}");
  leg0->AddEntry(h_RelIso_qcd,"QCD (MuPt15) ");
  leg0->AddEntry(h_RelIso_wjets,"W+jets");
  leg0->AddEntry(h_RelIso_zjets,"Z+jets");
  leg0->Draw();
  
  h_RelIso_all->Add(h_RelIso_ttbar,1.);
  h_RelIso_all->Add(h_RelIso_qcd,1.);
  h_RelIso_all->Add(h_RelIso_wjets,1.);
  h_RelIso_all->Add(h_RelIso_zjets,1.);
  h_RelIso_all->Write();
  h_RelIso_all->SetLineWidth(2);
  
  if( jbin == 4)
    h_RelIso_all->SetTitle( isoname+" RelIso distribution (#geq 4 jets)");
  else if ( jbin < 4 ) {
    TString title = isoname+" RelIso distribution (";
    title += jbin;
    title += " jets)";
    h_RelIso_all->SetTitle(title);
  }
  else {
    cout<<"Don't mess around!!! jbin should be less than 5!"<<endl;
    return;
  }
  h_RelIso_all->SetMinimum(0);
  
  file0->cd("hstack");
  hs->Write();
  
  file0->cd();
  ftree->Write();
  file0->Close();
}

Revision:	1.2
Committed:	Thu Apr 16 21:02:44 2009 UTC (16 years ago) by jengbou
Content type:	text/plain
Branch:	MAIN
Changes since 1.1:	+53 -29 lines
Log Message:	Update
#	User	Rev	Content
1	jengbou	1.1	#define skim_cxx
2			#include "skim.h"
3			#include <TH2.h>
4			#include <THStack.h>
5			#include <TStyle.h>
6			#include <TCanvas.h>
7			#include <TMath.h>
8			#include <TMultiGraph.h>
9			#include <TGraphErrors.h>
10			#include <TCanvas.h>
11			#include "Math/GSLIntegrator.h"
12			#include "Math/WrappedTF1.h"
13			#include <iostream>
14			#include <TLegend.h>
15			#include <TPaveStats.h>
16			#include <TTree.h>
17
18	jengbou	1.2	TString fileName = "skimmed/QCDbin4_OldRelIso_rebin.root";
19			// TString fileName = "skimmed/QCDbin4_OldRelIso_FastSim.root";
20			bool FastSim = false;
21			TString isoname = "Old";
22			// Jet bin:
23			Int_t jbin = 4; // 1-3, 4 for >=4. Put in number less than 5
24			double binwidth = 0.02; // 0.02,0.02,0.05,0.1 for New RelIso
25	jengbou	1.1	// Histo range
26			double xMin = 0.0;
27	jengbou	1.2	double xMax = 0.0;
28	jengbou	1.1	// Specify fitting function:
29			// Select New or Old reliso:
30			double d0sigCut = 3.;
31
32			Int_t fjbin;
33			Double_t fna; // Num of QCD events in signal region
34
35	jengbou	1.2	int nbin;
36
37	jengbou	1.1	void skim::Loop()
38			{
39			// In a ROOT session, you can do:
40			// Modify jbin, binwidth, wxmin, wxmax
41			// Root > .L skim.C++
42			// Root > skim t
43			// Root > t.GetEntry(12); // Fill t data members with entry number 12
44			// Root > t.Show(); // Show values of entry 12
45			// Root > t.Show(16); // Read and show values of entry 16
46			// Root > t.Loop(); // Loop on all entries
47	jengbou	1.2
48			if ( isoname.Contains("Old") ) {
49			xMax = 1+binwidth;
50			nbin = (1.0-xMin)/binwidth+1;
51			}
52			else if ( isoname.Contains("New") ) {
53			xMax = 2.0;
54			nbin = (xMax-xMin)/binwidth;
55			}
56			else {
57			cout << "No Rel Iso defined!" << endl;
58			return;
59			}
60			cout << "nbin for histo = " << nbin << endl;
61	jengbou	1.1	TTree *ftree = new TTree("myTree","myTree");
62			ftree->AutoSave();
63			ftree->Branch("jbin",&fjbin,"jbin/I");
64			ftree->Branch("na",&fna,"na/D");
65			ftree->SetBranchAddress("jbin",&fjbin);
66			ftree->SetBranchAddress("na",&fna);
67
68			TH1D *h_RelIso_ttbar = new TH1D("h_RelIso_ttbar","h_RelIso_ttbar",nbin,xMin,xMax);
69			TH1D *h_RelIso_qcd = new TH1D("h_RelIso_qcd","h_RelIso_qcd",nbin,xMin,xMax);
70			TH1D *h_RelIso_wjets = new TH1D("h_RelIso_wjets","h_RelIso_wjets",nbin,xMin,xMax);
71			TH1D *h_RelIso_zjets = new TH1D("h_RelIso_zjets","h_RelIso_zjets",nbin,xMin,xMax);
72			TH1D *h_RelIso_all = new TH1D("h_RelIso_all","h_RelIso_all",nbin,xMin,xMax);
73
74			// define fit region:
75			double AX0 = 0.;
76			double AXf = 0.;
77
78			cout<<"Use "<<isoname<<" RelIso"<<endl;
79
80			if ( isoname.Contains("Old") ) {
81			// old
82			AX0 = 0.95;
83			AXf = 1.0;
84			}
85			else if ( isoname.Contains("New") ) {
86			// new
87			AX0 = 0.0;
88	jengbou	1.2	AXf = 0.053; // default:0.053 ; loose:0.11
89	jengbou	1.1	}
90
91	jengbou	1.2	// Weights:
92			double wttbar,wqcd,wwjets,wzjets;
93			wttbar = wqcd = wwjets = wzjets = 0.;
94			if ( ! FastSim ) {
95			cout << "Full sim sample weights used " << endl;
96			// Full Sim
97			wttbar = 0.0101;
98			wqcd = 1.3161;
99			wwjets = 0.0977;
100			wzjets = 0.078;
101			}
102			else {
103			// Fast Sim
104			cout << "Fast sim sample weights used " << endl;
105			wttbar = 0.0008;
106			wqcd = 0.676;
107			wwjets = 0.0091;
108			wzjets = 0.0094;
109			}
110	jengbou	1.1
111			// Na = num of qcd in signal region
112			double Na;
113			Na = 0;
114
115			double Nttbar, NWjets, NZjets, Nqcd;
116			Nttbar = NWjets = NZjets = Nqcd = 0;
117			double reliso = 0.0;
118
119			if (fChain == 0) return;
120
121			Long64_t nentries = fChain->GetEntriesFast();
122
123			Long64_t nbytes = 0, nb = 0;
124			for (Long64_t jentry=0; jentry<nentries;jentry++) {
125			Long64_t ientry = LoadTree(jentry);
126			if (ientry < 0) break;
127			nb = fChain->GetEntry(jentry); nbytes += nb;
128			// if (Cut(ientry) < 0) continue;
129			bool signalRegion = false;
130
131			TString filename(fChain->GetCurrentFile()->GetName());
132			if (isoname.Contains("Old")) {
133			reliso = top_muon_old_reliso[0];
134			if ( reliso > AX0 ) signalRegion = true;
135			}
136			else if (isoname.Contains("New")) {
137			reliso = top_muon_new_reliso[0];
138			if ( reliso < AXf ) signalRegion = true;
139			}
140			else {
141			cout<<"No RelIso defined!!!"<<endl;
142			return;
143			}
144	jengbou	1.2
145	jengbou	1.1	double d0sig = TMath::Abs(top_muon_d0[0])/top_muon_d0Error[0];
146			bool correctBin = false; // jet bin condition
147			bool goodD0sig = false; // d0sig condition
148
149			if ( jbin > 4 ) {cout<<"Don't mess around!!! jbin should be less than 5!"<<endl;return;}
150			if (top_njets == jbin && jbin != 4) correctBin = true;
151			else if (top_njets >= jbin && jbin == 4) correctBin = true;
152			if ( d0sig < d0sigCut ) goodD0sig = true;
153
154	jengbou	1.2	// Counting
155	jengbou	1.1	if( correctBin && goodD0sig ) {
156	jengbou	1.2	if ( filename.Contains("TT") ) {
157	jengbou	1.1	h_RelIso_ttbar->Fill(reliso);
158			if ( signalRegion ) { Nttbar += wttbar; }
159			}
160	jengbou	1.2	if ( filename.Contains("Mu") ) {
161	jengbou	1.1	h_RelIso_qcd->Fill(reliso);
162			if ( signalRegion ) { Na += wqcd; Nqcd+= wqcd; } // QCD in signal region
163			}
164			if ( filename.Contains("WJets") ) {
165			h_RelIso_wjets->Fill(reliso);
166			if ( signalRegion ) { NWjets += wwjets; }
167			}
168			if ( filename.Contains("ZJets") ) {
169			h_RelIso_zjets->Fill(reliso);
170			if ( signalRegion ) { NZjets += wzjets; }
171			}
172			}
173			}
174			fjbin=jbin;
175			fna=Na;
176			ftree->Fill();
177			cout << "\n";
178			cout << " N ttbar = " << Nttbar << endl;
179			cout << " N qcd = " << Nqcd << endl;
180			cout << " N Wjets = " << NWjets << endl;
181			cout << " N Zjets = " << NZjets << endl << endl;
182
183			TFile *file0 = new TFile(fileName,"RECREATE");
184			file0->mkdir("histos");
185	jengbou	1.2	file0->mkdir("hstack");
186	jengbou	1.1	file0->cd("histos");
187			TCanvas *cv1 = new TCanvas("cv1","cv1",800,600);
188			THStack *hs = new THStack("hs","RelIso (stacked)");
189
190			// Take care of scaling
191			h_RelIso_qcd->Scale(wqcd);
192			h_RelIso_wjets->Scale(wwjets);
193			h_RelIso_zjets->Scale(wzjets);
194			h_RelIso_ttbar->Scale(wttbar);
195
196			// Save for later use
197			h_RelIso_ttbar->Write();
198			h_RelIso_qcd->Write();
199			h_RelIso_wjets->Write();
200			h_RelIso_zjets->Write();
201
202			h_RelIso_qcd->SetXTitle("Combined Relative Isolation");
203			h_RelIso_qcd->SetLineColor(40);
204			h_RelIso_qcd->SetFillStyle(3018);
205			h_RelIso_qcd->SetFillColor(38);
206			hs->Add(h_RelIso_qcd);
207			h_RelIso_wjets->SetMarkerColor(4);
208			h_RelIso_wjets->SetLineColor(4);
209			h_RelIso_wjets->SetFillColor(4);
210			hs->Add(h_RelIso_wjets);
211			h_RelIso_zjets->SetMarkerColor(5);
212			h_RelIso_zjets->SetLineColor(5);
213			h_RelIso_zjets->SetFillColor(5);
214			hs->Add(h_RelIso_zjets);
215			h_RelIso_ttbar->SetMarkerColor(2);
216			h_RelIso_ttbar->SetLineColor(2);
217			h_RelIso_ttbar->SetFillColor(2);
218			hs->Add(h_RelIso_ttbar);
219			hs->Draw();
220
221			// Label histo
222			TLegend * leg0 = new TLegend(0.3,0.3,0.6,0.55);
223			leg0->AddEntry(h_RelIso_ttbar,"t#bar{t}");
224			leg0->AddEntry(h_RelIso_qcd,"QCD (MuPt15) ");
225			leg0->AddEntry(h_RelIso_wjets,"W+jets");
226			leg0->AddEntry(h_RelIso_zjets,"Z+jets");
227			leg0->Draw();
228
229			h_RelIso_all->Add(h_RelIso_ttbar,1.);
230			h_RelIso_all->Add(h_RelIso_qcd,1.);
231			h_RelIso_all->Add(h_RelIso_wjets,1.);
232			h_RelIso_all->Add(h_RelIso_zjets,1.);
233			h_RelIso_all->Write();
234			h_RelIso_all->SetLineWidth(2);
235
236			if( jbin == 4)
237			h_RelIso_all->SetTitle( isoname+" RelIso distribution (#geq 4 jets)");
238			else if ( jbin < 4 ) {
239			TString title = isoname+" RelIso distribution (";
240			title += jbin;
241			title += " jets)";
242			h_RelIso_all->SetTitle(title);
243			}
244			else {
245			cout<<"Don't mess around!!! jbin should be less than 5!"<<endl;
246			return;
247			}
248			h_RelIso_all->SetMinimum(0);
249	jengbou	1.2
250			file0->cd("hstack");
251			hs->Write();
252
253	jengbou	1.1	file0->cd();
254			ftree->Write();
255			file0->Close();
256			}
257