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//
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// make up and down m4l shapes from mcfm and powheg inputs.
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//
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#if !defined(__CINT__) || defined(__MAKECINT__)
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#include <TROOT.h> // access to gROOT, entry point to ROOT system
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#include <TLegend.h>
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#include <TSystem.h> // interface to OS
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#include <TFile.h> // file handle class
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#include <TCanvas.h>
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#include <TH1F.h>
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#include <TTree.h> // class to access ntuples
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#include <TClonesArray.h> // ROOT array class
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#include <TLorentzVector.h> // 4-vector class
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#include <TBenchmark.h> // class to track macro running statistics
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#include <iostream> // standard I/O
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#include <iomanip> // functions to format standard I/O
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#include <fstream> // functions for file I/O
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#include <sstream> // class for parsing strings
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#include <map>
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#endif
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TCanvas *c1 = new TCanvas("c1","c1");
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vector<float> masses, widths;
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map <TString,TString> binstrings;
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void formatBins();
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TH1F *getMCFM(TString mass, TString process, TString production, TString updown);
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TH1F *getPowheg(TString mass, TString process, TString production);
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void Draw_em(map<TString,TH1F*> hists, TString proc, TString production, TString mass);
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TH1F* makeRatio(TH1F *hm, TH1F *hpowheg);
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void writeHists(map<TString,TH1F*> hists, TString process, TString production, TString mass);
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void shapeficator(TString proc, TString production, TString mass);
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//----------------------------------------------------------------------------------------
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// main
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//----------------------------------------------------------------------------------------
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void makeShape()
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{
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formatBins();
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shapeficator("zz","gg","115");
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shapeficator("zz","other","115");
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for(unsigned i=0; i<masses.size(); i++) {
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stringstream ss;
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ss << masses[i];
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shapeficator("higgs","gg",ss.str());
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}
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}
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//----------------------------------------------------------------------------------------
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// functions
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//----------------------------------------------------------------------------------------
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void formatBins()
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{
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binstrings["def"] = "(75,30,500)";
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masses.push_back(115);
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masses.push_back(120);
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masses.push_back(130);
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masses.push_back(140);
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masses.push_back(150);
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masses.push_back(160);
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masses.push_back(170);
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masses.push_back(180);
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masses.push_back(190);
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masses.push_back(200);
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masses.push_back(230);
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masses.push_back(250);
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masses.push_back(300);
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masses.push_back(350);
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masses.push_back(400);
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masses.push_back(500);
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masses.push_back(600);
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// higgs mass widths
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widths.push_back(0.0166566);
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widths.push_back(0.0185038);
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widths.push_back(0.0259764);
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widths.push_back(0.0425892);
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widths.push_back(0.0920884);
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widths.push_back(0.438603 );
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widths.push_back(1.96908 );
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widths.push_back(3.30333 );
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widths.push_back(5.40595 );
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widths.push_back(7.42329 );
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widths.push_back(14.688 );
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widths.push_back(20.9409 );
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widths.push_back(43.5433 );
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widths.push_back(77.7866 );
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widths.push_back(141.866 );
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widths.push_back(266.492 );
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widths.push_back(379.294 );
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// make strings of bin config (x,x,x) for each higgs mass
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stringstream ss;
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for(unsigned i=0; i<masses.size(); i++) {
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float mass = masses[i];
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float width = widths[i];
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ss.str("");
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ss << "(30," << mass-width << "," << mass+width << ")";
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TString binning(ss.str());
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ss.str("");
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ss << mass;
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binstrings[ss.str()] = binning;
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}
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}
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//----------------------------------------------------------------------------------------
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TH1F *getMCFM(TString mass, TString process, TString production, TString updown)
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{
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TString scale;
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if(updown=="def") scale = "91_";
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else if(updown=="lo") scale = "45_";
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else if(updown=="hi") scale = "182";
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else assert(0);
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TString fname,wgtStr;
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if(process=="higgs") {
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fname = "/temp/dkralph/mcfm/114-"+mass+"-"+updown+"/HZZ_4l_tota_mstw8nl_"+scale+"_"+scale+"_.root";
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wgtStr = "wt_gg";
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} else if(process=="zz") {
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fname = "/temp/dkralph/mcfm/81-115-"+updown+"/ZZlept_tota_mstw8nl_"+scale+"_"+scale+"_.root";
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if(production=="gg") wgtStr = "wt_gg";
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else if(production=="other") wgtStr = "wt_gq+wt_qqb";
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else assert(0);
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} else assert(0);
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TFile f(fname); assert(f.IsOpen());
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TTree *tree=0;
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f.GetObject("h10",tree); assert(tree);
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TString A,B,C,D,m,varexp;
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A = "(px3+px4+px5+px6)*(px3+px4+px5+px6)";
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B = "(py3+py4+py5+py6)*(py3+py4+py5+py6)";
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C = "(pz3+pz4+pz5+pz6)*(pz3+pz4+pz5+pz6)";
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D = "(E_3+E_4+E_5+E_6)*(E_3+E_4+E_5+E_6)";
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m = "sqrt("+D+"-"+A+"-"+B+"-"+C+")";
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TString binning = process=="zz" ? binstrings["def"] : binstrings[mass];
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varexp= m+">>m4l"+binning;
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tree->Draw(varexp,wgtStr,"",500000);
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TH1F *hm = (TH1F*)gDirectory->Get("m4l");
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hm->SetDirectory(0);
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hm->SetTitle("m4l");
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f.Close();
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hm->Scale(1./hm->Integral(0,hm->GetNbinsX()));
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return hm;
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}
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//----------------------------------------------------------------------------------------
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TH1F *getPowheg(TString mass, TString process, TString production)
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{
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TString fname;
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if(process=="higgs") {
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if(production=="gg") fname = "~/cms/cmssw/025/CMSSW_4_4_1/src/MitHzz4l/data/m4lshapes/s11-h"+mass+"zz4l-gf-v1g1-pu.root";
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else assert(0);
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} else if(process=="zz") {
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if(production=="gg") fname = "~/cms/cmssw/025/CMSSW_4_4_1/src/MitHzz4l/data/m4lshapes/s11-gg2zz_ntuple.root";
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else if(production=="other") fname = "~/cms/cmssw/025/CMSSW_4_4_1/src/MitHzz4l/data/m4lshapes/s11-zz4l-powheg_ntuple.root";
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else assert(0);
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}
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TFile fpowheg(fname);
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TTree *tr_powheg = (TTree*)fpowheg.Get("tr_m4l");
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TString binning = process=="zz" ? binstrings["def"] : binstrings[mass];
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tr_powheg->Draw("m4l>>m4l_pow"+binning,"xswgt");
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TH1F *hm = (TH1F*)gDirectory->Get("m4l_pow");
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hm->SetDirectory(0);
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fpowheg.Close();
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hm->Scale(1./hm->Integral(0,hm->GetNbinsX()));
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return hm;
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}
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//----------------------------------------------------------------------------------------
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void Draw_em(map<TString,TH1F*> hists, TString proc, TString production, TString mass)
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{
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// Draw shapes
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hists["hm_def"]->SetLineWidth(2);
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hists["hm_def"]->Draw();
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hists["hm_lo"]->SetLineColor(kBlue);
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hists["hm_lo"]->SetLineStyle(kDashed);
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hists["hm_lo"]->Draw("same");
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hists["hm_hi"]->SetLineColor(kViolet);
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hists["hm_hi"]->SetLineStyle(kDashed);
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hists["hm_hi"]->Draw("same");
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hists["hpowheg"]->SetLineColor(kRed);
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hists["hpowheg"]->SetLineWidth(2);
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hists["hpowheg"]->Draw("same");
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TLegend leg(0.7,0.7,0.9,0.9);
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leg.AddEntry(hists["hm_def"],"MCFM","L");
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leg.AddEntry(hists["hm_lo"],"MCFM low","L");
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leg.AddEntry(hists["hm_hi"],"MCFM high","L");
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leg.AddEntry(hists["hpowheg"],"POWHEG","L");
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leg.SetFillColor(0);
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leg.Draw();
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// c1->SetLogy();
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c1->SaveAs("./plots/"+proc+"-"+production+"-"+mass+"-shapes.png");
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// Draw ratios
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hists["ratio_def"]->SetLineWidth(2);
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hists["ratio_def"]->Draw();
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hists["ratio_lo"]->SetLineColor(kBlue);
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hists["ratio_lo"]->SetLineStyle(kDashed);
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hists["ratio_lo"]->Draw("same");
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hists["ratio_hi"]->SetLineColor(kRed);
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hists["ratio_hi"]->SetLineStyle(kDashed);
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hists["ratio_hi"]->Draw("same");
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TLegend leg2(0.7,0.7,0.9,0.9);
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leg2.AddEntry(hists["ratio_def"],"MCFM","L");
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leg2.AddEntry(hists["ratio_lo"],"MCFM low","L");
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leg2.AddEntry(hists["ratio_hi"],"MCFM high","L");
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leg2.SetFillColor(0);
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leg2.Draw();
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// c1->SetLogy();
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c1->SaveAs("./plots/"+proc+"-"+production+"-"+mass+"-ratios.png");
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}
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//----------------------------------------------------------------------------------------
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TH1F* makeRatio(TH1F *hm, TH1F *hpowheg)
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{
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// make ratio of hm/powheg
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TH1F *ratio = new TH1F(*hm);
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ratio->Divide(hm,hpowheg);
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for(int ibin=0; ibin<hm->GetNbinsX()+2; ibin++) {
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if(hm->GetBinContent(ibin)==0 || hm->GetBinContent(ibin)==0)
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ratio->SetBinContent(ibin,1);
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}
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return ratio;
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}
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//----------------------------------------------------------------------------------------
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void writeHists(map<TString,TH1F*> hists, TString process, TString production, TString mass)
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{
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TString fname;
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if(process=="higgs") fname = "~/cms/cmssw/025/CMSSW_4_4_1/src/MitHzz4l/data/m4lshapes/s11-h"+mass+"zz4l-gf-v1g1-pu_weights.root";
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// else if(process=="zz") fname = "~/cms/cmssw/025/CMSSW_4_4_1/src/MitHzz4l/data/m4lshapes/s11-zz-v11-pu_weights.root";
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else if(process=="zz") fname = "~/cms/cmssw/025/CMSSW_4_4_1/src/MitHzz4l/data/m4lshapes/s11-zz4l-powheg_weights.root";
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TFile f(fname,"update");
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hists["ratio_def"]->Write("mcfm_def_"+production);
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hists["ratio_lo"]->Write("mcfm_lo_"+production);
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hists["ratio_hi"]->Write("mcfm_hi_"+production);
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f.Close();
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}
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//----------------------------------------------------------------------------------------
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void shapeficator(TString proc, TString production, TString mass)
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{
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// draw histograms from ntuples, make ratio hists, make plots, and write hists to file
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map<TString,TH1F*> hists;
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hists["hm_def"] = getMCFM(mass,proc,production,"def"); // mcfm shape
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hists["hm_lo"] = getMCFM(mass,proc,production,"lo"); // mcfm shape
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hists["hm_hi"] = getMCFM(mass,proc,production,"hi"); // mcfm shape
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hists["hpowheg"] = getPowheg(mass,proc,production); // powheg shape
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hists["ratio_def"] = makeRatio(hists["hm_def"],hists["hpowheg"]);
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hists["ratio_lo"] = makeRatio(hists["hm_lo"], hists["hpowheg"]);
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hists["ratio_hi"] = makeRatio(hists["hm_hi"], hists["hpowheg"]);
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// cout << mass << "\t" << 3*hists["hpowheg"]->GetRMS() << endl;
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Draw_em(hists,proc,production,mass);
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writeHists(hists,proc,production,mass);
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}
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