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
#	Content
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	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	// Histo range
26	double xMin = 0.0;
27	double xMax = 0.0;
28	// 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	int nbin;
36
37	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
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	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	AXf = 0.053; // default:0.053 ; loose:0.11
89	}
90
91	// 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
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
145	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	// Counting
155	if( correctBin && goodD0sig ) {
156	if ( filename.Contains("TT") ) {
157	h_RelIso_ttbar->Fill(reliso);
158	if ( signalRegion ) { Nttbar += wttbar; }
159	}
160	if ( filename.Contains("Mu") ) {
161	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	file0->mkdir("hstack");
186	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
250	file0->cd("hstack");
251	hs->Write();
252
253	file0->cd();
254	ftree->Write();
255	file0->Close();
256	}
257