TGraphErrors plot(RooDataSet *dataset, TString alpha, TString constTerm){
TTree *tree = dataset2tree(dataset);
TH2F *hist = prof2d(tree, alpha, constTerm, "nll");
RooHistPdf *histPdf = nllToL(hist);
TTree *genTree = dataset2tree(histPdf->generate(*histPdf->getVariables(),1000000,kTRUE,kFALSE));
TGraphErrors graph = g(genTree);
delete tree;
delete hist;
delete histPdf;
delete genTree;
return graph;
}
TGraphErrors plot(TFile *f, TString alpha, TString constTerm){
RooStats::MarkovChain *chain = (RooStats::MarkovChain *)f->Get("_markov_chain");
TTree *tree = dataset2tree(chain->GetAsDataSet());
TH2F *hist = prof2d(tree, alpha, constTerm, "nll_MarkovChain_local_");
RooHistPdf *histPdf = nllToL(hist);
TTree *genTree = dataset2tree(histPdf->generate(*histPdf->getVariables(),1000000,kTRUE,kFALSE));
TGraphErrors graph = g(genTree);
delete tree;
delete hist;
delete histPdf;
delete genTree;
return graph;
}
void FitterUtils::generate()
{
//***************Get the PDFs from the workspace
TFile fw(workspacename.c_str(), "UPDATE");
RooWorkspace* workspace = (RooWorkspace*)fw.Get("workspace");
RooRealVar *B_plus_M = workspace->var("B_plus_M");
RooRealVar *misPT = workspace->var("misPT");
RooRealVar *T = workspace->var("T");
RooRealVar *n = workspace->var("n");
RooRealVar *expoConst = workspace->var("expoConst");
RooRealVar *trueExp = workspace->var("trueExp");
RooRealVar *fractionalErrorJpsiLeak = workspace->var("fractionalErrorJpsiLeak");
cout<<"VALUE OF T IN GENERATE: "<<T->getVal()<<" +- "<<T->getError()<<endl;
cout<<"VALUE OF n IN GENERATE: "<<n->getVal()<<" +- "<<n->getError()<<endl;
RooHistPdf *histPdfSignalZeroGamma = (RooHistPdf *) workspace->pdf("histPdfSignalZeroGamma");
RooHistPdf *histPdfSignalOneGamma = (RooHistPdf *) workspace->pdf("histPdfSignalOneGamma");
RooHistPdf *histPdfSignalTwoGamma = (RooHistPdf *) workspace->pdf("histPdfSignalTwoGamma");
RooHistPdf *histPdfPartReco = (RooHistPdf *) workspace->pdf("histPdfPartReco");
RooHistPdf *histPdfJpsiLeak(0);
if(nGenJpsiLeak>1) histPdfJpsiLeak = (RooHistPdf *) workspace->pdf("histPdfJpsiLeak");
RooAbsPdf *combPDF;
if (fit2D)
{
combPDF = new RooPTMVis("combPDF", "combPDF", *misPT, *B_plus_M, *T, *n, *expoConst);
}
else
{
combPDF = new RooExponential("combPDF", "combPDF", *B_plus_M, *expoConst);
}
double trueExpConst(trueExp->getValV());
expoConst->setVal(trueExpConst);
//***************Prepare generation
int nGenSignalZeroGamma(floor(nGenFracZeroGamma*nGenSignal));
int nGenSignalOneGamma(floor(nGenFracOneGamma*nGenSignal));
int nGenSignalTwoGamma(floor(nGenSignal-nGenSignalZeroGamma-nGenSignalOneGamma));
RooArgSet argset2(*B_plus_M);
if (fit2D) argset2.add(*misPT);
cout<<"Preparing the generation of events 1";
RooRandom::randomGenerator()->SetSeed();
RooAbsPdf::GenSpec* GenSpecSignalZeroGamma = histPdfSignalZeroGamma->prepareMultiGen(argset2, RooFit::Extended(1), NumEvents(nGenSignalZeroGamma)); cout<<" 2 ";
RooAbsPdf::GenSpec* GenSpecSignalOneGamma = histPdfSignalOneGamma->prepareMultiGen(argset2, RooFit::Extended(1), NumEvents(nGenSignalOneGamma)); cout<<" 3 ";
RooAbsPdf::GenSpec* GenSpecSignalTwoGamma = histPdfSignalTwoGamma->prepareMultiGen(argset2, RooFit::Extended(1), NumEvents(nGenSignalTwoGamma)); cout<<" 4 ";
RooAbsPdf::GenSpec* GenSpecPartReco = histPdfPartReco->prepareMultiGen(argset2, RooFit::Extended(1), NumEvents(nGenPartReco)); cout<<" 5 "<<endl;
RooAbsPdf::GenSpec* GenSpecComb = combPDF->prepareMultiGen(argset2, RooFit::Extended(1), NumEvents(nGenComb));
RooAbsPdf::GenSpec* GenSpecJpsiLeak(0);
if(nGenJpsiLeak>1) GenSpecJpsiLeak = histPdfJpsiLeak->prepareMultiGen(argset2, RooFit::Extended(1), NumEvents(nGenJpsiLeak));
cout<<"Variable loaded:"<<endl;
B_plus_M->Print(); expoConst->Print(); //B_plus_DTFM_M_zero->Print();
if (fit2D) misPT->Print();
//***************Generate some datasets
cout<<"Generating signal Zero Photon"<<endl;
RooDataSet* dataGenSignalZeroGamma = histPdfSignalZeroGamma->generate(*GenSpecSignalZeroGamma);//(argset, 250, false, true, "", false, true);
dataGenSignalZeroGamma->SetName("dataGenSignalZeroGamma"); dataGenSignalZeroGamma->SetTitle("dataGenSignalZeroGamma");
cout<<"Generating signal One Photon"<<endl;
RooDataSet* dataGenSignalOneGamma = histPdfSignalOneGamma->generate(*GenSpecSignalOneGamma);//(argset, 250, false, true, "", false, true);
dataGenSignalOneGamma->SetName("dataGenSignalOneGamma"); dataGenSignalOneGamma->SetTitle("dataGenSignalOneGamma");
cout<<"Generating signal two Photons"<<endl;
RooDataSet* dataGenSignalTwoGamma = histPdfSignalTwoGamma->generate(*GenSpecSignalTwoGamma);//(argset, 250, false, true, "", false, true);
dataGenSignalTwoGamma->SetName("dataGenSignalTwoGamma"); dataGenSignalTwoGamma->SetTitle("dataGenSignalTwoGamma");
cout<<"Generating combinatorial"<<endl;
RooDataSet* dataGenComb = combPDF->generate(*GenSpecComb);//(argset, 100, false, true, "", false, true);
dataGenComb->SetName("dataGenComb"); dataGenComb->SetTitle("dataGenComb");
cout<<"Generating PartReco"<<endl;
RooDataSet* dataGenPartReco = histPdfPartReco->generate(*GenSpecPartReco);//argset, 160, false, true, "", false, true);
dataGenPartReco->SetName("dataGenPartReco"); dataGenPartReco->SetTitle("dataGenPartReco");
RooDataSet* dataGenJpsiLeak(0);
if(nGenJpsiLeak>1)
{
cout<<"Generating Leaking JPsi"<<endl;
dataGenJpsiLeak = histPdfJpsiLeak->generate(*GenSpecJpsiLeak);//argset, 160, false, true, "", false, true);
dataGenJpsiLeak->SetName("dataGenJpsiLeak"); dataGenJpsiLeak->SetTitle("dataGenJpsiLeak");
}
//*************Saving the generated datasets in a workspace
RooWorkspace workspaceGen("workspaceGen", "workspaceGen");
workspaceGen.import(*dataGenSignalZeroGamma);
workspaceGen.import(*dataGenSignalOneGamma);
workspaceGen.import(*dataGenSignalTwoGamma);
workspaceGen.import(*dataGenComb);
workspaceGen.import(*dataGenPartReco);
if(nGenJpsiLeak>1) workspaceGen.import(*dataGenJpsiLeak);
workspaceGen.Write("", TObject::kOverwrite);
//delete workspace;
fw.Close();
delete dataGenSignalZeroGamma;
delete dataGenSignalOneGamma;
delete dataGenSignalTwoGamma;
delete dataGenComb;
delete dataGenPartReco;
if(nGenJpsiLeak>1) delete dataGenJpsiLeak;
delete GenSpecSignalZeroGamma;
delete GenSpecSignalOneGamma;
delete GenSpecSignalTwoGamma;
delete GenSpecComb;
delete GenSpecPartReco;
delete combPDF;
if(nGenJpsiLeak>1) delete GenSpecJpsiLeak;
delete histPdfSignalZeroGamma;
delete histPdfSignalOneGamma;
delete histPdfSignalTwoGamma;
delete histPdfPartReco;
if(nGenJpsiLeak>1) delete histPdfJpsiLeak;
}
//## Crystall Ball to model the background
RooRealVar m0("m0","m0",100,50.,150.);
RooRealVar sigma("sigma","sigma",30,0.,60);
RooRealVar alpha("alpha","alpha",-0.4,-100,0.);
RooRealVar n("n","n",10,0.,+100);
RooCBShape Pdf_bkg("bkgMej","bkgMej",Mej,m0,sigma,alpha,n);
RooRealVar N_bkg("N_bkg","N_bkg",100,0.,10000);
RooAddPdf *modelFit=new RooAddPdf("modelFit","Fit model",RooArgList(Pdf_bkg),RooArgList(N_bkg));
//1) ## Generate a toyMC sample and fit
RooDataSet *data = Pdf_data.generate(Mej,10000) ;
RooFitResult* fitresult = Pdf_bkg.fitTo(*data,Extended(),Minos(kFALSE),Save(kTRUE)) ;
// or
//2) ## Fit the bkg histogram with the fit model
//RooFitResult* fitresult = Pdf_bkg.fitTo(RDH_data,Extended(),Minos(kFALSE),Save(kTRUE)) ;
//## Plot histo data and fit result together
RooPlot* mesframe = Mej.frame(Name("Mejframe"),Title("Only bkg")) ;
data->plotOn(Mejframe) ;
//RDH_data.plotOn(Mejframe) ;
modelFit.plotOn(Mejframe) ;
void MakePlots(TString filename, TString energy="8TeV", TString lumi=""){
TString outDir=filename; outDir.ReplaceAll("fitres","img");
outDir="tmp/";
//std::map<TString, TH2F *> deltaNLL_map;
/*------------------------------ Plotto */
TCanvas *c = new TCanvas("c","c");
TFile f_in(filename, "read");
if(f_in.IsZombie()){
std::cerr << "File opening error: " << filename << std::endl;
return;
}
TList *KeyList = f_in.GetListOfKeys();
std::cout << KeyList->GetEntries() << std::endl;
for(int i =0; i < KeyList->GetEntries(); i++){
c->Clear();
TKey *key = (TKey *)KeyList->At(i);
if(TString(key->GetClassName())!="RooDataSet") continue;
RooDataSet *dataset = (RooDataSet *) key->ReadObj();
TString constTermName = dataset->GetName();
TString alphaName=constTermName; alphaName.ReplaceAll("constTerm","alpha");
TTree *tree = dataset2tree(dataset);
TGraphErrors bestFit_ = bestFit(tree, alphaName, constTermName);
TH2F *hist = prof2d(tree, alphaName, constTermName, "nll", "(12,-0.0005,0.0115,29,-0.0025,0.1425)",true);
// // deltaNLL_map.insert(std::pair <TString, TH2F *>(keyName,hist));
hist->SaveAs(outDir+"/deltaNLL-"+constTermName+".root");
hist->Draw("colz");
bestFit_.Draw("P same");
bestFit_.SetMarkerSize(2);
Int_t iBinX, iBinY;
Double_t x,y;
hist->GetBinWithContent2(0,iBinX,iBinY);
x= hist->GetXaxis()->GetBinCenter(iBinX);
y= hist->GetYaxis()->GetBinCenter(iBinY);
TGraph nllBestFit(1,&x,&y);
nllBestFit.SetMarkerStyle(3);
nllBestFit.SetMarkerColor(kRed);
TList* contour68 = contourFromTH2(hist, 0.68);
hist->Draw("colz");
hist->GetZaxis()->SetRangeUser(0,50);
bestFit_.Draw("P same");
nllBestFit.Draw("P same");
//contour68->Draw("same");
c->SaveAs(outDir+"/deltaNLL-"+constTermName+".png");
hist->SaveAs("tmp/hist-"+constTermName+".root");
nllBestFit.SaveAs("tmp/nllBestFit.root");
contour68->SaveAs("tmp/contour68.root");
delete hist;
hist = prof2d(tree, alphaName, constTermName, "nll", "(12,-0.0005,0.0115,29,-0.0025,0.1425)");
RooHistPdf *histPdf = nllToL(hist);
delete hist;
RooDataSet *gen_dataset=histPdf->generate(*histPdf->getVariables(),1000000,kTRUE,kFALSE);
TTree *genTree = dataset2tree(gen_dataset);
genTree->SaveAs("tmp/genTree-"+constTermName+".root");
delete gen_dataset;
delete histPdf;
TGraphErrors toyGraph = g(genTree, constTermName);
TGraphErrors bestFitGraph = g(tree,alphaName, constTermName);
TGraphErrors bestFitScanGraph = g(y, x);
delete genTree;
delete tree;
toyGraph.SetFillColor(kGreen);
toyGraph.SetLineColor(kBlue);
toyGraph.SetLineStyle(2);
bestFitGraph.SetLineColor(kBlack);
bestFitScanGraph.SetLineColor(kRed);
bestFitScanGraph.SetLineWidth(2);
TMultiGraph g_multi("multigraph","");
g_multi.Add(&toyGraph,"L3");
g_multi.Add(&toyGraph,"L");
g_multi.Add(&bestFitGraph, "L");
g_multi.Add(&bestFitScanGraph, "L");
g_multi.Draw("A");
c->Clear();
g_multi.Draw("A");
c->SaveAs(outDir+"/smearing_vs_energy-"+constTermName+".png");
// TPaveText *pv = new TPaveText(0.7,0.7,1, 0.8);
// TLegend *legend = new TLegend(0.7,0.8,0.95,0.92);
// legend->SetFillStyle(3001);
// legend->SetFillColor(1);
// legend->SetTextFont(22); // 132
// legend->SetTextSize(0.04); // l'ho preso mettendo i punti con l'editor e poi ho ricavato il valore con il metodo GetTextSize()
// // legend->SetFillColor(0); // colore di riempimento bianco
// legend->SetMargin(0.4); // percentuale della larghezza del simbolo
// SetLegendStyle(legend);
//Plot(c, data,mc,mcSmeared,legend, region, filename, energy, lumi);
}
f_in.Close();
return;
}
