예제 #1
0
void reweight_diphotonpt_1d(TH1F*weight_diphopt,TH1F*weight_diphopto,TH2F*weight_diphoptn,TH2F*weight_diphopt2o,TH2F*weight_diphoptnr, TH2F* weight_diphopt2,RooDataSet **dset, RooDataSet *dsetdestination){

  if (!(*dset)) return;
  if (!(dsetdestination)) return;
///numerator and denominator
  TH1F *hnum = new TH1F("hnum","hnum",n_diphoptbins_forreweighting,diphoptbins_forreweighting);
  TH1F *hden = new TH1F("hden","hden",n_diphoptbins_forreweighting,diphoptbins_forreweighting);
  hnum->Sumw2();
  hden->Sumw2();

     
// RooAbsData->get*() Load a given row of data

 //getRealValue Get value of a RooAbsReal stored in set with given name. If none is found, value of defVal is returned.
 for (int i=0; i<(*dset)->numEntries(); i++){
      hden->Fill(fabs((*dset)->get(i)->getRealValue("roodiphopt")),(*dset)->store()->weight(i));
  }
  for (int i=0; i<dsetdestination->numEntries(); i++){
    hnum->Fill(fabs(dsetdestination->get(i)->getRealValue("roodiphopt")),dsetdestination->store()->weight(i));
  }
 //normalize to one 
  hnum->Scale(1.0/hnum->Integral());
  hden->Scale(1.0/hden->Integral());
  hnum->Divide(hden);
  TH1F *h = hnum;
  RooDataSet *newdset = new RooDataSet(**dset,Form("%s_diphoptrew",(*dset)->GetName()));
  newdset->reset();
  assert(newdset);
  for (int i=0; i<(*dset)->numEntries(); i++){
    RooArgSet args = *((*dset)->get(i));
    float oldw = (*dset)->store()->weight(i);
    float diphopt = fabs((*dset)->get(i)->getRealValue("roodiphopt"));
    float neww = oldw*h->GetBinContent(h->FindBin(fabs(diphopt)));
    newdset->add(args,neww);
    if(debug){
		weight_diphopt->Fill(neww);
		weight_diphopto->Fill(oldw);
		weight_diphopt2o->Fill((h->FindBin(fabs(diphopt))),oldw);	
		weight_diphoptn->Fill((h->FindBin(fabs(diphopt))),neww);	
		if(oldw!=0)weight_diphoptnr->Fill(h->FindBin(fabs(diphopt)),oldw/neww);
		else {weight_diphoptnr->Fill(-10,1);}//cout << "dipho weight old 0" << endl;}
		if(oldw!=0)weight_diphopt2->Fill(diphopt,oldw/neww);
		else {weight_diphopt2->Fill(-10,1);}//cout << "dipho weight old 0" << endl;}
	 }
		}

  newdset->SetName((*dset)->GetName());
  newdset->SetTitle((*dset)->GetTitle());
  delete hnum; delete hden;
 
  RooDataSet *old_dset = *dset;
  *dset=newdset;
  std::cout << "Diphoton Pt 1d rew: norm from " << old_dset->sumEntries() << " to " << newdset->sumEntries() << std::endl;

  delete old_dset;

};
예제 #2
0
//2d reweighting of rho and its sigma
void reweight_rhosigma(TH1F* weight_rho, TH1F* weight_rhoo,TH2F*weight_rhon,TH2F*weight_rho2o,TH2F* weight_rhonr, TH2F* weight_rho2,TH2F*weight_sigman,TH2F*weight_sigma2o,TH2F* weight_sigmanr, TH2F* weight_sigma2,RooDataSet **dset, RooDataSet *dsetdestination, bool deleteold){
  if (!(*dset)) return;
//  TH2F *hnum = new TH2F("hnum","hnum",n_rhobins_forreweighting,rhobins_forreweighting,n_sigmabins_forreweighting,sigmabins_forreweighting);
//  TH2F *hden = new TH2F("hden","hden",n_rhobins_forreweighting,rhobins_forreweighting,n_sigmabins_forreweighting,sigmabins_forreweighting);
  TH2F *hnum = new TH2F("hnum","hnum",100,0,100,20,0,20);
  TH2F *hden = new TH2F("hden","hden",100,0,100,20,0,20);
  hnum->Sumw2();
  hden->Sumw2();
  for (int i=0; i<(*dset)->numEntries(); i++){
    hden->Fill(fabs((*dset)->get(i)->getRealValue("roorho")),fabs((*dset)->get(i)->getRealValue("roosigma")),(*dset)->store()->weight(i));
  }
  for (int i=0; i<dsetdestination->numEntries(); i++){
    hnum->Fill(fabs(dsetdestination->get(i)->getRealValue("roorho")),fabs(dsetdestination->get(i)->getRealValue("roosigma")),dsetdestination->store()->weight(i));
  }

  hnum->Scale(1.0/hnum->Integral());
  hden->Scale(1.0/hden->Integral());
//data/MC
  hnum->Divide(hden);
  TH2F *h = hnum;

  RooDataSet *newdset = new RooDataSet(**dset,Form("%s_rhosigmarew",(*dset)->GetName()));
  newdset->reset();
  for (int i=0; i<(*dset)->numEntries(); i++){
    RooArgSet args = *((*dset)->get(i));
    float oldw = (*dset)->store()->weight(i);
    float rho = args.getRealValue("roorho");
    float sigma = args.getRealValue("roosigma");
    float neww = oldw*h->GetBinContent(h->FindBin(rho,sigma));
	if(debug){
		weight_rho->Fill(neww);
		weight_rhoo->Fill(oldw);
		weight_rho2o->Fill(h->GetXaxis()->FindBin(rho),oldw);	
		weight_rhon->Fill(h->GetXaxis()->FindBin(rho),neww);	
		if(oldw!=0)weight_rhonr->Fill(h->GetXaxis()->FindBin(rho),oldw/neww);
		else {weight_rhonr->Fill(-10,1);}//cout << "dipho weight old 0" << endl;}
		if(oldw!=0)weight_rho2->Fill(rho,oldw/neww);
		weight_sigma2o->Fill(h->GetYaxis()->FindBin(sigma),oldw);	
		weight_sigman->Fill(h->GetYaxis()->FindBin(sigma),neww);	
		if(oldw!=0)weight_sigmanr->Fill(h->GetYaxis()->FindBin(sigma),oldw/neww);
		else {weight_sigmanr->Fill(-10,1);}//cout << "dipho weight old 0" << endl;}
		if(oldw!=0)weight_sigma2->Fill(sigma,oldw/neww);
	}
		newdset->add(args,neww);
	  }
	  newdset->SetName((*dset)->GetName());
	  newdset->SetTitle((*dset)->GetTitle());
	  delete hnum; delete hden;
	  RooDataSet *old_dset = *dset;
	  *dset=newdset;
	  std::cout << "RhoSigma2D rew: norm from " << old_dset->sumEntries() << " to " << newdset->sumEntries() << std::endl;
	  if (deleteold) delete old_dset;
	};
예제 #3
0
int main() {

  std::vector<float> masses;
  masses.push_back( 300. );
  masses.push_back( 400. );
  masses.push_back( 500. );
  masses.push_back( 750. );
  masses.push_back( 1000. );
  masses.push_back( 1250. );
  masses.push_back( 1500. );
  masses.push_back( 2000. );
  masses.push_back( 2500. );
  masses.push_back( 3000. );
  masses.push_back( 5000. );


  for( unsigned i=0; i<masses.size(); ++i ) {

    std::cout << "-> Starting mass: " << masses[i] << std::endl;

    TFile* file  = TFile::Open( Form("toySignal_m%.0f.root", masses[i]), "recreate" );
    file->cd();

    float thisMass = masses[i];

    RooRealVar x("mass", "mass", thisMass, 0.2*thisMass, 2.*thisMass );

    // Crystal-Ball
    RooRealVar mean( "mean", "mean", thisMass );
    RooRealVar sigma( "sigma", "sigma", 0.015*thisMass );
    RooRealVar alpha( "alpha", "alpha", 1.2 );
    RooRealVar n( "n", "n", 0.81 );
    RooCBShape cb( "cb", "cb", x, mean, sigma, alpha, n );

    // Generate a toy dataset from the interpreted p.d.f
    RooDataSet* data = cb.generate(x,10000) ;
    data->SetName("data");
    data->Write();

    file->Close();
  
  }

  return 0;

}
예제 #4
0
파일: bs_gen.cpp 프로젝트: magania/b_fitter
int main (int argc, char **argv)
{
  const char* chInFile = "ws.root";
  const char* chOutFile = "ws_gen.root";
  int numSignal = 10000;
  int numBkg = 100000;

  char option_char;
  while ( (option_char = getopt(argc,argv, "i:o:s:b:")) != EOF )
    switch (option_char)
      {
         case 'i': chInFile = optarg; break;
         case 'o': chOutFile = optarg; break;
         case 's': numSignal = atoi(optarg); break;
         case 'b': numBkg = atoi(optarg); break;
         case '?': fprintf (stderr,
                            "usage: %s [i<input file> o<output file>]\n", argv[0]);
      }

  cout << "In File = " << chInFile << endl;
  cout << "Out File = " << chOutFile << endl;
  cout << "Signal Events = " << numSignal << endl;
  cout << "Bkg Events = " << numBkg << endl;

  TFile inFile(chInFile,"READ");
  RooWorkspace* ws = (RooWorkspace*) inFile.Get("rws");
  TFile outFile(chOutFile,"RECREATE");

/*
  ws->var("tau")->setVal(1.417);
  ws->var("DG")->setVal(0.151);
  ws->var("beta")->setVal(0.25);
  ws->var("A02")->setVal(0.553);
  ws->var("A1")->setVal(0.487);
  ws->var("delta_l")->setVal(3.15);
  ws->var("fs")->setVal(0.147);
*/

//  ws->var("delta_l")->setConstant(kTRUE);
//  ws->var("delta_p")->setConstant(kTRUE);
//  ws->var("Dm")->setConstant(kTRUE);

  //*ws->var("xs") = numSignal/(numSignal+numBkg);
//  int numSignal = numEvents * ws->var("xs")->getVal();
//  int numBkg = numEvents - numSignal;

  ws->factory("Gaussian::dilutionGauss(d,0,0.276)");
  //ws->factory("SUM::dSignalPDF(xds[0.109]*dilutionGauss,TruthModel(d))");
  //ws->factory("SUM::dBkgPDF(xdb[0.109]*dilutionGauss,TruthModel(d))");
  ws->factory("SUM::dSignalPDF(xds[1]*dilutionGauss,TruthModel(d))");
  ws->factory("SUM::dBkgPDF(xdb[1]*dilutionGauss,TruthModel(d))");

/*
  ws->factory("GaussModel::xetGaussianS(et,meanGaussEtS,sigmaGaussEtS)");
  ws->factory("Decay::xerrorSignal(et,tauEtS,xetGaussianS,SingleSided]");

  ws->factory("PROD::xsignalTimeAngle(timeAngle|et,xerrorSignal");
  ws->factory("PROD::xsignal(massSignal,xsignalTimeAngle,DmConstraint)");
*/

  RooDataSet* dSignalData = ws->pdf("dSignalPDF")->generate(RooArgSet(*ws->var("d")),numSignal);
  RooDataSet *dataSignal = ws->pdf("signal")->generate(RooArgSet(*ws->var("m"),*ws->var("t"),*ws->var("et"),*ws->var("cpsi"),*ws->var("ctheta"),*ws->var("phi")), RooFit::ProtoData(*dSignalData));

  ws->factory("GaussModel::xetGaussianPR(et,meanGaussEtPR,sigmaGaussEtPR)");
  ws->factory("Decay::xerrBkgPR(et,tauEtPR,xetGaussianPR,SingleSided]");

  ws->factory("GaussModel::xetGaussianNP(et,meanGaussEtNP,sigmaGaussEtNP)");
  ws->factory("Decay::xerrBkgNP(et,tauEtNP,xetGaussianNP,SingleSided]");


  /* Time */
  ws->factory("GaussModel::xresolution(t,0,scale,et)");
  ws->factory("Decay::xnegativeDecay(t,tauNeg,xresolution,Flipped)");
  ws->factory("Decay::xpositiveDecay(t,tauPos,xresolution,SingleSided)");
  ws->factory("Decay::xpositiveLongDecay(t,tauLngPos,xresolution,SingleSided)");

  ws->factory("RSUM::xtBkgNP(xn*xnegativeDecay,xp*xpositiveDecay,xpositiveLongDecay");

/*               Promt and Non-Prompt                       */
   ws->factory("PROD::xtimeBkgNP(xtBkgNP|et,xerrBkgNP)");
   ws->factory("PROD::xtimeBkgPR(xresolution|et,xerrBkgPR)");

   ws->factory("PROD::xPrompt(massBkgPR,xtimeBkgPR,anglePR)");
   ws->factory("PROD::xNonPrompt(massBkgNP,xtimeBkgNP,angleNP)");

  ws->factory("SUM::xbackground(xprompt*xPrompt,xNonPrompt)");


  RooDataSet* dBkgData = ws->pdf("dBkgPDF")->generate(RooArgSet(*ws->var("d")),numBkg);
  RooDataSet* dataBkg  = ws->pdf("xbackground")->generate(RooArgSet(*ws->var("m"),*ws->var("t"),*ws->var("et"),*ws->var("cpsi"),*ws->var("ctheta"),*ws->var("phi")), numBkg);

  dataBkg->merge(dBkgData);
  dataSignal->SetName("dataGenSignal");
  dataBkg->SetName("dataGenBkg");
  ws->import(*dataSignal);
  ws->import(*dataBkg);

  ////ws->import(*dataBkg,RooFit::Rename("dataGenBkg"));

  dataSignal->append(*dataBkg);
  dataSignal->SetName("dataGen");
  ws->import(*dataSignal);

  //RooFitResult *fit_result = ws->pdf("model")->fitTo(*ws->data("data"), RooFit::Save(kTRUE), RooFit::ConditionalObservables(*ws->var("d")), RooFit::NumCPU(2), RooFit::PrintLevel(3));
/*
        gROOT->SetStyle("Plain");

        TCanvas canvas("canvas", "canvas", 400,400);

        RooPlot *m_frame = ws->var("t")->frame();
        dataSignal->plotOn(m_frame, RooFit::MarkerSize(0.3));
        m_frame->Draw();

	canvas.SaveAs("m_toy_plot.png");
*/
/*
        gROOT->SetStyle("Plain");

        TCanvas canvas("canvas", "canvas", 800,400);
        canvas.Divide(2);

        canvas.cd(1);
        RooPlot *t_frame = ws->var("t")->frame();
        ws->data("data")->plotOn(t_frame, RooFit::MarkerSize(0.3));
        gPad->SetLogy(1);
        t_frame->Draw();

        canvas.cd(2);
        RooPlot *et_frame = ws->var("et")->frame();
        ws->data("data")->plotOn(et_frame,RooFit::MarkerSize(0.2));
        ws->pdf("errorSignal")->plotOn(et_frame);
        gPad->SetLogy(1);
        et_frame->Draw();

        canvas.SaveAs("t.png"); 


        canvas.cd(2);
        gPad->SetLogy(0);
        RooPlot *cpsi_frame = ws.var("cpsi")->frame();
        data->plotOn(cpsi_frame,RooFit::MarkerSize(0.2), RooFit::Rescale(1));
        data2->plotOn(cpsi_frame,
                RooFit::LineColor(kBlue), RooFit::DrawOption("L"));
        cpsi_frame->Draw();

        canvas.cd(3);
        RooPlot *ctheta_frame = ws.var("ctheta")->frame();
        data->plotOn(ctheta_frame,RooFit::MarkerSize(0.2), RooFit::Rescale(1));
        data2->plotOn(ctheta_frame,
                RooFit::LineColor(kBlue), RooFit::DrawOption("L"));
        ctheta_frame->Draw();

        canvas.cd(4);
        RooPlot *phi_frame = ws.var("phi")->frame();
        data->plotOn(phi_frame,RooFit::MarkerSize(0.2), RooFit::Rescale(1));
        data2->plotOn(phi_frame,
                RooFit::LineColor(kBlue), RooFit::DrawOption("L"));
        phi_frame->Draw();

       canvas.SaveAs("t.png");

*/

  ws->data("dataGen")->Print();
  ws->data("dataGenSignal")->Print();
  ws->data("dataGenBkg")->Print();

  ws->Write("rws");
  outFile.Close();
  inFile.Close();
}
void FitterUtilsSimultaneousExpOfPolyTimesX::generate(bool wantPlots, string plotsfile)
{
   FitterUtilsExpOfPolyTimesX::generate(wantPlots, plotsfile);
   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");
   RooDataSet* dataSetCombExt = (RooDataSet*)workspace->data("dataSetCombExt");
   RooDataSet* dataSetComb = (RooDataSet*)workspace->data("dataSetComb");
//   RooRealVar *l1KeeGen = workspace->var("l1KeeGen");  
//   RooRealVar *l2KeeGen = workspace->var("l2KeeGen");  
//   RooRealVar *l3KeeGen = workspace->var("l3KeeGen");  
//   RooRealVar *l4KeeGen = workspace->var("l4KeeGen");  
//   RooRealVar *l5KeeGen = workspace->var("l5KeeGen");  
//
//
//   RooExpOfPolyTimesX kemuPDF("kemuPDF", "kemuPDF",  *B_plus_M, *misPT,  *l1KeeGen, *l2KeeGen, *l3KeeGen, *l4KeeGen, *l5KeeGen);
//
//   RooAbsPdf::GenSpec* GenSpecKemu = kemuPDF.prepareMultiGen(RooArgSet(*B_plus_M, *misPT), RooFit::Extended(1), NumEvents(nGenKemu));
//
//   cout<<"Generating Kemu"<<endl;
//   RooDataSet* dataGenKemu = kemuPDF.generate(*GenSpecKemu);//(argset, 100, false, true, "", false, true);
//   dataGenKemu->SetName("dataGenKemu"); dataGenKemu->SetTitle("dataGenKemu");
//
//
//   RooWorkspace* workspaceGen = (RooWorkspace*)fw.Get("workspaceGen");
//   workspaceGen->import(*dataGenKemu);
//
//   workspaceGen->Write("", TObject::kOverwrite);
//   fw.Close();
//   delete dataGenKemu;
//   delete GenSpecKemu;


   TVectorD rho(2);
   rho[0] = 2.5;
   rho[1] = 1.5;
   misPT->setRange(-2000, 5000);
   RooNDKeysPdf kemuPDF("kemuPDF", "kemuPDF", RooArgList(*B_plus_M, *misPT), *dataSetCombExt, rho, "ma",3, true);
   misPT->setRange(0, 5000);


   RooAbsPdf::GenSpec* GenSpecKemu = kemuPDF.prepareMultiGen(RooArgSet(*B_plus_M, *misPT), RooFit::Extended(1), NumEvents(nGenKemu));

   cout<<"Generating Kemu"<<endl;
   RooDataSet* dataGenKemu = kemuPDF.generate(*GenSpecKemu);//(argset, 100, false, true, "", false, true);
   dataGenKemu->SetName("dataGenKemu"); dataGenKemu->SetTitle("dataGenKemu");


   RooWorkspace* workspaceGen = (RooWorkspace*)fw.Get("workspaceGen");
   workspaceGen->import(*dataGenKemu);

   if(wantPlots) PlotShape(*dataSetComb, *dataGenKemu, kemuPDF, plotsfile, "cKemuKeys", *B_plus_M, *misPT);

   fw.cd();
   workspaceGen->Write("", TObject::kOverwrite);
   fw.Close();
   delete dataGenKemu;
   delete GenSpecKemu;
}
예제 #6
0
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;


}
string runQuickRejig(string oldfilename, int ncats){
  
  string newfilename="TestWS.root";
  TFile *oldFile = TFile::Open(oldfilename.c_str());
  TFile *newFile = new TFile(newfilename.c_str(),"RECREATE");

  RooWorkspace *oldWS = (RooWorkspace*)oldFile->Get("cms_hgg_workspace");
  RooWorkspace *newWS = new RooWorkspace("wsig_8TeV");
  
  RooRealVar *mass = (RooRealVar*)oldWS->var("CMS_hgg_mass");

  RooDataSet *tot;

  RooRealVar *normT1 = new RooRealVar("nT1","nT1",500,0,550);
  RooRealVar *meanT1 = new RooRealVar("mT1","mT1",125,122,128);
  RooRealVar *sigmaT1 = new RooRealVar("sT1","sT1",3.1,1.,10.);
  RooGaussian *gausT1 = new RooGaussian("gT1","gT1",*mass,*meanT1,*sigmaT1);
  RooRealVar *normT2 = new RooRealVar("nT2","nT2",2,0,500);
  RooRealVar *meanT2 = new RooRealVar("mT2","mT2",125,122,128);
  RooRealVar *sigmaT2 = new RooRealVar("sT2","sT2",1.7,0.,10.);
  RooGaussian *gausT2 = new RooGaussian("gT2","gT2",*mass,*meanT2,*sigmaT2);
  RooRealVar *normT3 = new RooRealVar("nT3","nT3",2,0,500);
  RooRealVar *meanT3 = new RooRealVar("mT3","mT3",125,122,128);
  RooRealVar *sigmaT3 = new RooRealVar("sT3","sT3",1.7,0.,10.);
  RooGaussian *gausT3 = new RooGaussian("gT3","gT3",*mass,*meanT3,*sigmaT3);
  RooAddPdf *gausT = new RooAddPdf("gT","gT",RooArgList(*gausT1,*gausT2,*gausT3),RooArgList(*normT1,*normT2,*normT3));

  for (int cat=0; cat<ncats; cat++){
    RooDataSet *thisData = (RooDataSet*)oldWS->data(Form("sig_ggh_mass_m125_cat%d",cat));
    newWS->import(*thisData);
    RooRealVar *norm1 = new RooRealVar(Form("n1%d",cat),Form("n1%d",cat),500,0,550);
    RooRealVar *mean1 = new RooRealVar(Form("m1%d",cat),Form("m1%d",cat),125,122,128);
    RooRealVar *sigma1 = new RooRealVar(Form("s1%d",cat),Form("s1%d",cat),3.1,1.,10.);
    RooGaussian *gaus1 = new RooGaussian(Form("g1%d",cat),Form("g1%d",cat),*mass,*mean1,*sigma1);
    RooRealVar *norm2 = new RooRealVar(Form("n2%d",cat),Form("n2%d",cat),2,0,500);
    RooRealVar *mean2 = new RooRealVar(Form("m2%d",cat),Form("m2%d",cat),125,122,128);
    RooRealVar *sigma2 = new RooRealVar(Form("s2%d",cat),Form("s2%d",cat),1.7,0.,10.);
    RooGaussian *gaus2 = new RooGaussian(Form("g2%d",cat),Form("g2%d",cat),*mass,*mean2,*sigma2);
    RooRealVar *norm3 = new RooRealVar(Form("n3%d",cat),Form("n3%d",cat),2,0,500);
    RooRealVar *mean3 = new RooRealVar(Form("m3%d",cat),Form("m3%d",cat),125,122,128);
    RooRealVar *sigma3 = new RooRealVar(Form("s3%d",cat),Form("s3%d",cat),1.7,0.,10.);
    RooGaussian *gaus3 = new RooGaussian(Form("g3%d",cat),Form("g3%d",cat),*mass,*mean3,*sigma3);
    RooAddPdf *gaus = new RooAddPdf(Form("g%d",cat),"g",RooArgList(*gaus1,*gaus2,*gaus3),RooArgList(*norm1,*norm2,*norm3));
    gaus->fitTo(*thisData,SumW2Error(kTRUE));
    newWS->import(*gaus);
    if (cat==0) {
      tot = thisData;
      tot->SetName("sig_ggh_m125");
    }
    else tot->append(*thisData);
  }
  newWS->import(*tot);
  gausT->fitTo(*tot,SumW2Error(kTRUE));
  newWS->import(*gausT);
  newWS->Write();
  oldFile->Close();
  newFile->Close();
  delete newFile;
  delete newWS;

  return newfilename;

}