void performClosure(RooRealVar *mass, RooAbsPdf *pdf, RooDataSet *data, string closurename, double wmin=110., double wmax=130., double slow=110., double shigh=130., double step=0.002) {
// plot to perform closure test
cout << "Performing closure test..." << endl;
double nbins = (wmax-wmin)/step;
TH1F *h = new TH1F("h","h",int(floor(nbins+0.5)),wmin,wmax);
if (data){
pdf->fillHistogram(h,RooArgList(*mass),data->sumEntries());
h->Scale(2*h->GetNbinsX()/double(binning_));
}
else {
pdf->fillHistogram(h,RooArgList(*mass));
}
int binLow = h->FindBin(slow);
int binHigh = h->FindBin(shigh)-1;
TH1F *copy = new TH1F("copy","c",binHigh-binLow,h->GetBinLowEdge(binLow),h->GetBinLowEdge(binHigh+1));
for (int b=0; b<copy->GetNbinsX(); b++) copy->SetBinContent(b+1,h->GetBinContent(b+1+binLow));
double areaCov = 100*h->Integral(binLow,binHigh)/h->Integral();
// style
h->SetLineColor(kBlue);
h->SetLineWidth(3);
h->SetLineStyle(7);
copy->SetLineWidth(3);
copy->SetFillColor(kGray);
TCanvas *c = new TCanvas();
if (data){
RooPlot *plot = mass->frame(Bins(binning_),Range("higgsRange"));
plot->addTH1(h,"hist");
plot->addTH1(copy,"same f");
if (data) data->plotOn(plot);
pdf->plotOn(plot,Normalization(h->Integral(),RooAbsReal::NumEvent),NormRange("higgsRange"),Range("higgsRange"),LineWidth(1),LineColor(kRed),LineStyle(kDashed));
plot->Draw();
c->Print(closurename.c_str());
}
else {
RooPlot *plot = mass->frame(Bins(binning_),Range("higgsRange"));
h->Scale(plot->getFitRangeBinW()/h->GetBinWidth(1));
copy->Scale(plot->getFitRangeBinW()/h->GetBinWidth(1));
pdf->plotOn(plot,LineColor(kRed),LineWidth(3));
plot->Draw();
h->Draw("hist same");
copy->Draw("same f");
c->Print(closurename.c_str());
}
cout << "IntH: [" << h->GetBinLowEdge(binLow) << "-" << h->GetBinLowEdge(binHigh+1) << "] Area = " << areaCov << endl;
delete c;
delete copy;
delete h;
}
void Plot(RooRealVar *mass, RooDataSet *data, RooAbsPdf *pdf, pair<double,double> sigRange, vector<double> fwhmRange, string title, string savename){
double semin=sigRange.first;
double semax=sigRange.second;
double fwmin=fwhmRange[0];
double fwmax=fwhmRange[1];
double halfmax=fwhmRange[2];
double binwidth=fwhmRange[3];
RooPlot *plot = mass->frame(Bins(binning_),Range("higgsRange"));
if (data) data->plotOn(plot,Invisible());
pdf->plotOn(plot,NormRange("higgsRange"),Range(semin,semax),FillColor(19),DrawOption("F"),LineWidth(2),FillStyle(1001),VLines(),LineColor(15));
TObject *seffLeg = plot->getObject(int(plot->numItems()-1));
pdf->plotOn(plot,NormRange("higgsRange"),Range(semin,semax),LineColor(15),LineWidth(2),FillStyle(1001),VLines());
pdf->plotOn(plot,NormRange("higgsRange"),Range("higgsRange"),LineColor(kBlue),LineWidth(2),FillStyle(0));
TObject *pdfLeg = plot->getObject(int(plot->numItems()-1));
if (data) data->plotOn(plot,MarkerStyle(kOpenSquare));
TObject *dataLeg = plot->getObject(int(plot->numItems()-1));
TLegend *leg = new TLegend(0.15,0.89,0.5,0.55);
leg->SetFillStyle(0);
leg->SetLineColor(0);
leg->SetTextSize(0.03);
if (data) leg->AddEntry(dataLeg,"Simulation","lep");
leg->AddEntry(pdfLeg,"Parametric model","l");
leg->AddEntry(seffLeg,Form("#sigma_{eff} = %1.2f GeV",0.5*(semax-semin)),"fl");
plot->GetXaxis()->SetNdivisions(509);
halfmax*=(plot->getFitRangeBinW()/binwidth);
TArrow *fwhmArrow = new TArrow(fwmin,halfmax,fwmax,halfmax,0.02,"<>");
fwhmArrow->SetLineWidth(2.);
TPaveText *fwhmText = new TPaveText(0.15,0.45,0.45,0.58,"brNDC");
fwhmText->SetFillColor(0);
fwhmText->SetLineColor(kWhite);
fwhmText->SetTextSize(0.03);
fwhmText->AddText(Form("FWHM = %1.2f GeV",(fwmax-fwmin)));
TLatex lat1(0.65,0.85,"#splitline{CMS Preliminary}{Simulation}");
lat1.SetNDC(1);
lat1.SetTextSize(0.03);
TLatex lat2(0.65,0.75,title.c_str());
lat2.SetNDC(1);
lat2.SetTextSize(0.025);
TCanvas *canv = new TCanvas("c","c",600,600);
plot->SetTitle("");
plot->GetXaxis()->SetTitle("m_{#gamma#gamma} (GeV)");
plot->Draw();
leg->Draw("same");
fwhmArrow->Draw("same <>");
fwhmText->Draw("same");
lat1.Draw("same");
lat2.Draw("same");
canv->Print(Form("%s.pdf",savename.c_str()));
canv->Print(Form("%s.png",savename.c_str()));
string path = savename.substr(0,savename.find('/'));
canv->Print(Form("%s/animation.gif+100",path.c_str()));
delete canv;
}
