//____________________________________________________________________
void ErrorIntegral() {
fitFunc = new TF1("f",f,0,1,NPAR);
TH1D * h1 = new TH1D("h1","h1",50,0,1);
double par[NPAR] = { 3.14, 1.};
fitFunc->SetParameters(par);
h1->FillRandom("f",1000); // fill histogram sampling fitFunc
fitFunc->SetParameter(0,3.); // vary a little the parameters
h1->Fit(fitFunc); // fit the histogram
h1->Draw();
/* calculate the integral*/
double integral = fitFunc->Integral(0,1);
TVirtualFitter * fitter = TVirtualFitter::GetFitter();
assert(fitter != 0);
double * covMatrix = fitter->GetCovarianceMatrix();
/* using new function in TF1 (from 12/6/2007)*/
double sigma_integral = fitFunc->IntegralError(0,1);
std::cout << "Integral = " << integral << " +/- " << sigma_integral
<< std::endl;
// estimated integral and error analytically
double * p = fitFunc->GetParameters();
double ic = p[1]* (1-std::cos(p[0]) )/p[0];
double c0c = p[1] * (std::cos(p[0]) + p[0]*std::sin(p[0]) -1.)/p[0]/p[0];
double c1c = (1-std::cos(p[0]) )/p[0];
// estimated error with correlations
double sic = std::sqrt( c0c*c0c * covMatrix[0] + c1c*c1c * covMatrix[3]
+ 2.* c0c*c1c * covMatrix[1]);
if ( std::fabs(sigma_integral-sic) > 1.E-6*sic )
std::cout << " ERROR: test failed : different analytical integral : "
<< ic << " +/- " << sic << std::endl;
}
//____________________________________________________________________
void ErrorIntegral() {
fitFunc = new TF1("f",f,0,1,NPAR);
TH1D * h1 = new TH1D("h1","h1",50,0,1);
double par[NPAR] = { 3.14, 1.};
fitFunc->SetParameters(par);
h1->FillRandom("f",1000); // fill histogram sampling fitFunc
fitFunc->SetParameter(0,3.); // vary a little the parameters
h1->Fit(fitFunc); // fit the histogram
h1->Draw();
// calculate the integral
double integral = fitFunc->Integral(0,1);
TVirtualFitter * fitter = TVirtualFitter::GetFitter();
assert(fitter != 0);
double * covMatrix = fitter->GetCovarianceMatrix();
#ifdef HAVE_OLD_ROOT_VERSION
// calculate now the error (needs the derivatives of the function
// w..r.t the parameters)
TF1 * deriv_par0 = new TF1("dfdp0",df_dPar,0,1,1);
deriv_par0->SetParameter(0,0);
TF1 * deriv_par1 = new TF1("dfdp1",df_dPar,0,1,1);
deriv_par1->SetParameter(0,1.);
double c[2];
c[0] = deriv_par0->Integral(0,1);
c[1] = deriv_par1->Integral(0,1);
double * epar = fitFunc->GetParErrors();
// without correlations
double sigma_integral_0 = IntegralError(2,c,epar);
// with correlations
double sigma_integral = IntegralError(2,c,epar,covMatrix);
#else
// using new function in TF1 (from 12/6/2007)
double sigma_integral = fitFunc->IntegralError(0,1);
#endif
std::cout << "Integral = " << integral << " +/- " << sigma_integral
<< std::endl;
// estimated integral and error analytically
double * p = fitFunc->GetParameters();
double ic = p[1]* (1-std::cos(p[0]) )/p[0];
double c0c = p[1] * (std::cos(p[0]) + p[0]*std::sin(p[0]) -1.)/p[0]/p[0];
double c1c = (1-std::cos(p[0]) )/p[0];
// estimated error with correlations
double sic = std::sqrt( c0c*c0c * covMatrix[0] + c1c*c1c * covMatrix[3]
+ 2.* c0c*c1c * covMatrix[1]);
if ( std::fabs(sigma_integral-sic) > 1.E-6*sic )
std::cout << " ERROR: test failed : different analytical integral : "
<< ic << " +/- " << sic << std::endl;
}
void FitDijetMass_Data() {
TFile *inf = new TFile("MassResults_ak7calo.root");
TH1F *hCorMassDen = (TH1F*) inf->Get("DiJetMass");
hCorMassDen->SetXTitle("Corrected Dijet Mass (GeV)");
hCorMassDen->SetYTitle("Events/GeV");
hCorMassDen->GetYaxis()->SetTitleOffset(1.5);
hCorMassDen->SetMarkerStyle(20);
hCorMassDen->GetXaxis()->SetRangeUser(120.,900.);
gROOT->ProcessLine(".L tdrstyle.C");
setTDRStyle();
tdrStyle->SetErrorX(0.5);
tdrStyle->SetPadRightMargin(0.08);
tdrStyle->SetLegendBorderSize(0);
gStyle->SetOptFit(1111);
tdrStyle->SetOptStat(0);
TCanvas* c2 = new TCanvas("c2","DijetMass", 500, 500);
/////// perform 4 parameters fit
TF1 *func = new TF1("func", "[0]*((1-x/7000.+[3]*(x/7000)^2)^[1])/(x^[2])",
100., 1000.);
func->SetParameter(0, 1.0e+08);
func->SetParameter(1, -1.23);
func->SetParameter(2, 4.13);
func->SetParameter(3, 1.0);
func->SetLineColor(4);
func->SetLineWidth(3);
TVirtualFitter::SetMaxIterations( 10000 );
TVirtualFitter *fitter;
TMatrixDSym* cov_matrix;
int fitStatus = hCorMassDen->Fit("func","LLI","",130.0, 800.0); // QCD fit
TH1F *hFitUncertainty = hCorMassDen->Clone("hFitUncertainty");
hFitUncertainty->SetLineColor(5);
hFitUncertainty->SetFillColor(5);
hFitUncertainty->SetMarkerColor(5);
if (fitStatus == 0) {
fitter = TVirtualFitter::GetFitter();
double* m_elements = fitter->GetCovarianceMatrix();
cov_matrix = new TMatrixDSym( func->GetNumberFreeParameters(),m_elements);
cov_matrix->Print();
double x, y, e;
for(int i=0;i<hFitUncertainty->GetNbinsX();i++)
{
x = hFitUncertainty->GetBinCenter(i+1);
y = func->Eval(x);
e = QCDFitUncertainty( func, *cov_matrix, x);
hFitUncertainty->SetBinContent(i+1,y);
hFitUncertainty->SetBinError(i+1,e);
}
}
hCorMassDen->Draw("ep");
gPad->Update();
TPaveStats *st = (TPaveStats*)hCorMassDen->FindObject("stats");
st->SetName("stats1");
st->SetX1NDC(0.3); //new x start position
st->SetX2NDC(0.6); //new x end position
st->SetTextColor(4);
hCorMassDen->GetListOfFunctions()->Add(st);
/////// perform 2 parameters fit
TF1 *func2 = new TF1("func2", "[0]*(1-x/7000.)/(x^[1])", 100., 1000.);
func2->SetParameter(0, 10000.);
func2->SetParameter(1, 5.0);
func2->SetLineWidth(3);
fitStatus = hCorMassDen->Fit("func2","LLI","",130.0, 800.0); // QCD fit
TH1F *hFitUncertainty2 = hCorMassDen->Clone("hFitUncertainty2");
hFitUncertainty2->SetLineColor(kGray);
hFitUncertainty2->SetFillColor(kGray);
hFitUncertainty2->SetMarkerColor(kGray);
if (fitStatus == 0) {
fitter = TVirtualFitter::GetFitter();
double* m_elements = fitter->GetCovarianceMatrix();
cov_matrix = new TMatrixDSym( func2->GetNumberFreeParameters(),m_elements);
cov_matrix->Print();
double x, y, e;
for(int i=0;i<hFitUncertainty2->GetNbinsX();i++)
{
x = hFitUncertainty2->GetBinCenter(i+1);
y = func2->Eval(x);
e = QCDFitUncertainty( func2, *cov_matrix, x);
hFitUncertainty2->SetBinContent(i+1,y);
hFitUncertainty2->SetBinError(i+1,e);
}
}
hFitUncertainty->Draw("E3 same");
hCorMassDen->Draw("ep sames");
hFitUncertainty2->Draw("E3 same");
hCorMassDen->Draw("ep sames");
func2->Draw("same");
c2->SetLogy(1);
/*
TH1F *hCorMass = hCorMassDen->Clone("hCorMass");
for(int i=0; i<hCorMass->GetNbinsX(); i++){
hCorMass->SetBinContent(i+1, hCorMassDen->GetBinContent(i+1) * hCorMassDen->GetBinWidth(i+1));
hCorMass->SetBinError(i+1, hCorMassDen->GetBinError(i+1) * hCorMassDen->GetBinWidth(i+1));
}
// Our observable is the invariant mass
RooRealVar invMass("invMass", "Corrected dijet mass",
100., 1000.0, "GeV");
RooDataHist data( "data", "", invMass, hCorMass);
//////////////////////////////////////////////
// make QCD model
RooRealVar p0("p0", "# events", 600.0, 0.0, 10000000000.);
RooRealVar p1("p1","p1", 3.975, -10., 10.) ;
RooRealVar p2("p2","p2", 5.302, 4., 8.) ;
RooRealVar p3("p3","p3", -1.51, -100., 100.) ;
// // define QCD line shape
RooGenericPdf qcdModel("qcdModel", "pow(1-@0/7000.+@3*(@0/7000.)*(@0/7000.),@1)*pow(@0/7000.,-@2)",
RooArgList(invMass,p1,p2,p3));
// full model
RooAddPdf model("model","qcd",RooArgList(qcdModel), RooArgList(p0));
//plot sig candidates, full model, and individual componenets
// __ _ _
// / _(_) |_
// | |_| | __|
// | _| | |_
// |_| |_|\__|
// Important: fit integrating f(x) over ranges defined by X errors, rather
// than taking point at center of bin
RooFitResult* fit = model.fitTo(data, Minos(kFALSE), Extended(kTRUE),
SumW2Error(kFALSE),Save(kTRUE), Range(130.,800.),
Integrate(kTRUE) );
// to perform chi^2 minimization fit instead
// RooFitResult* fit = model.chi2FitTo(data, Extended(kTRUE),
// Save(),Range(50.,526.),Integrate(kTRUE) );
fit->Print();
//plot data
TCanvas* cdataNull = new TCanvas("cdataNull","fit to dijet mass",500,500);
RooPlot* frame1 = invMass.frame() ;
data.plotOn(frame1, DataError(RooAbsData::SumW2) ) ;
model.plotOn(frame1, LineColor(kBlue)) ;
model.plotOn(frame1, VisualizeError(*fit, 1),FillColor(kYellow)) ;
data.plotOn(frame1, DataError(RooAbsData::SumW2) ) ;
model.plotOn(frame1, LineColor(kBlue)) ;
model.paramOn(frame1, Layout(0.4, 0.85, 0.92));
TPaveText* dataPave = (TPaveText*) frame1->findObject("model_paramBox");
dataPave->SetY1(0.77);
gPad->SetLogy();
frame1->GetYaxis()->SetNoExponent();
frame1->GetYaxis()->SetRangeUser(5E-2,5E+4);
frame1->GetYaxis()->SetTitle("Events / bin");
frame1->GetYaxis()->SetTitleOffset(1.35);
frame1->SetTitle("fit to data with QCD lineshape");
frame1->Draw() ;
// S h o w r e s i d u a l a n d p u l l d i s t s
// -------------------------------------------------------
//// Construct a histogram with the residuals of the data w.r.t. the curve
RooHist* hresid = frame1->residHist() ;
// Create a new frame to draw the residual distribution and add the distribution to the frame
RooPlot* frame2 = invMass.frame(Title("Residual Distribution")) ;
frame2->addPlotable(hresid,"P") ;
///// Construct a histogram with the pulls of the data w.r.t the curve
RooHist* hpull = frame1->pullHist() ;
//// Create a new frame to draw the pull distribution and add the distribution to the frame
RooPlot* frame3 = invMass.frame(Title("Pull Distribution")) ;
frame3->addPlotable(hpull,"P") ;
TCanvas* cResidual = new TCanvas("cResidual","Residual Distribution",1000,500);
cResidual->Divide(2) ;
cResidual->cd(1) ; gPad->SetLeftMargin(0.15) ; frame1->GetYaxis()->SetTitleOffset(1.6) ; frame2->Draw() ;
cResidual->cd(2) ; gPad->SetLeftMargin(0.15) ; frame1->GetYaxis()->SetTitleOffset(1.6) ; frame3->Draw() ;
*/
}
void Fit_electron_nsigma_Mean(TH1F *mh1NisgmaE_unlike[NpT_bins_run12_MB],TH1F *mh1NisgmaE_like[NpT_bins_run12_MB],TH1F *mh1NisgmaE_unlike_like[NpT_bins_run12_MB])
{
gStyle->SetOptFit(1111);
TH1F *Mean=new TH1F("Mean","", NpT_bins_run12_MB,pt_run12_MB);
TH1F *Mean_u=new TH1F("Mean_u","",NpT_bins_run12_MB,pt_run12_MB);
TH1F *Mean_d=new TH1F("Mean_d","",NpT_bins_run12_MB,pt_run12_MB);
TH1F *Sigma=new TH1F("Sigma","",NpT_bins_run12_MB,pt_run12_MB);
TH1F *Sigma_u=new TH1F("Sigma_u","",NpT_bins_run12_MB,pt_run12_MB);
TH1F *Sigma_d=new TH1F("Sigma_d","",NpT_bins_run12_MB,pt_run12_MB);
TCanvas *c2=new TCanvas("c2","",1200,1000);
TCanvas *c3=new TCanvas("c3","",1200,1000);
TCanvas *c4=new TCanvas("c4","",1200,1000);
TCanvas *c5=new TCanvas("c5","",1200,1000);
c2->Divide(3,3,0.001,0.001);
c3->Divide(3,3,0.001,0.001);
c4->Divide(3,3,0.001,0.001);
c5->Divide(3,3,0.001,0.001);
int Npad=1;
for(Int_t ipt=0;ipt<NpT_bins_run12_MB;ipt++)
{
TF1 *f1 = new TF1(TString("f1"),"gaus",-5,5);
if(ipt<9)
{
c2->cd(Npad++);
gPad->SetLogy(1);
}
else if(ipt<18)
{
c3->cd(Npad++);
gPad->SetLogy(1);
}
else if(ipt<27)
{
c4->cd(Npad++);
gPad->SetLogy(1);
}
else if(ipt<36)
{
c5->cd(Npad++);
gPad->SetLogy(1);
}
if(Npad==10) Npad=1;
mh1NisgmaE_unlike_like[ipt]->SetTitle(mh1_pT_Title[ipt]);
mh1NisgmaE_unlike_like[ipt]->GetXaxis()->SetTitle("nSigmaE");
mh1NisgmaE_unlike_like[ipt]->GetYaxis()->SetTitle("Counts");
mh1NisgmaE_unlike_like[ipt]->GetYaxis()->SetRangeUser(1,1.2*mh1NisgmaE_unlike[ipt]->GetMaximum());
mh1NisgmaE_unlike_like[ipt]->GetXaxis()->SetRangeUser(-3,3);
mh1NisgmaE_unlike[ipt]->SetLineColor(1);
mh1NisgmaE_like[ipt]->SetLineColor(3);
mh1NisgmaE_unlike_like[ipt]->SetLineColor(4);
mh1NisgmaE_unlike_like[ipt]->Fit(f1,"R","same",-3,3);
mh1NisgmaE_unlike[ipt]->Draw("same");
mh1NisgmaE_unlike_like[ipt]->Draw("same");
mh1NisgmaE_like[ipt]->Draw("same");
TLegend *legend = new TLegend(0.15,0.65,0.4,0.8);
legend->AddEntry(mh1NisgmaE_unlike[ipt],"Unlike ","lpe");
legend->AddEntry(mh1NisgmaE_like[ipt],"Like ","lpe");
legend->AddEntry(mh1NisgmaE_unlike_like[ipt],"Unlike - Like ","lpe");
legend->SetBorderSize(0);
legend->SetFillStyle(0);
legend->SetTextSize(0.035);
legend->Draw("same");
TVirtualFitter * fitter = TVirtualFitter::GetFitter();
assert(fitter != 0);
double * cov =fitter->GetCovarianceMatrix();
cout<<cov[0]<<" "<<sqrt(cov[4])<<" "<<sqrt(cov[8])<<" "<<cov[7]<<" meanerr="<<f1->GetParError(1)<<"sigmaerr "<<f1->GetParError(2)<<endl;
outdata << (pt_run12_MB[ipt]+pt_run12_MB[ipt+1])/2 << " " << 0.5*(pt_run12_MB[ipt+1]-pt_run12_MB[ipt]) << " "
<< f1->GetParameter(1) << " " << cov[4] << " "
<< f1->GetParameter(2) << " " << cov[8] << " "<<cov[7]<< endl;
}
c2->SaveAs("nsigmaE_c2_partner.pdf");
c3->SaveAs("nsigmaE_c3_partner.pdf");
c4->SaveAs("nsigmaE_c4_partner.pdf");
c5->SaveAs("nsigmaE_c5_partner.pdf");
}
//***############## main fitting Fxn ################ *****//
void FitPlotAndSave( char *Ifile ){
/** Plot Options***/
//gROOT->Reset();
// gROOT->Clear();
gROOT->SetStyle("Plain") ;
gROOT->SetBatch(kFALSE);
gStyle->SetOptTitle(1);
gStyle->SetOptStat(0);
gStyle->SetOptFit(1);
gStyle->SetStatX(.89);
gStyle->SetStatY(.89) ;
gStyle->SetStatBorderSize(0);
//gStyle->SetOptStat(1111111)
gStyle->SetCanvasColor(kWhite); // background is no longer mouse-dropping white
gStyle->SetPalette(1); // blue to red false color palette. Use 9 for b/w
gStyle->SetCanvasBorderMode(0); // turn off canvas borders
gStyle->SetPadBorderMode(0);
gStyle->SetPaintTextFormat("5.2f"); // What precision to put numbers if plotted with "TEXT"
// For publishing:
gStyle->SetLineWidth(2);
gStyle->SetTextSize(1.1);
gStyle->SetLabelSize(0.06,"xy");
gStyle->SetTitleSize(0.08,"xy");
gStyle->SetTitleOffset(1.2,"x");
gStyle->SetTitleOffset(1.0,"y");
gStyle->SetPadTopMargin(0.1);
gStyle->SetPadRightMargin(0.1);
gStyle->SetPadBottomMargin(0.16);
gStyle->SetPadLeftMargin(0.12);
TGaxis::SetMaxDigits(1); // Set Axis to be of the form 0.11 10^N
TFile *ifile = new TFile(Ifile);
TF1 *fitFcn = new TF1("fitFcn", mygaus, FitLowRange, FitHighRange, 3 );
fitFcn->SetNpx(500);
fitFcn->SetLineWidth(4);
fitFcn->SetLineStyle(5);
fitFcn->SetLineColor(kBlue);
cout <<" Calling Fitting Fxntion" << endl;
TH1F*h_Seed_TimeEBEB = (TH1F*)ifile->Get("EBEB/seed time");
if(h_Seed_TimeEBEB == 0){ std::cout <<"!! Histogram Does not exist!!" << std::endl; throw 1;}
h_Seed_TimeEBEB->SetTitle("Seed Time[ns]");
h_Seed_TimeEBEB->SetMarkerStyle(20);
h_Seed_TimeEBEB->SetMarkerSize(0.8);
h_Seed_TimeEBEB->SetStats(1);
h_Seed_TimeEBEB->SetTitleSize(0.08, "x");
h_Seed_TimeEBEB->SetTitleOffset(1.0, "x");
h_Seed_TimeEBEB->SetTitleSize(0.06, "y");
h_Seed_TimeEBEB->SetTitleOffset(0.95, "y");
h_Seed_TimeEBEB->SetYTitle("Number of Seeds/0.05ns");
h_Seed_TimeEBEB->SetXTitle("t_{seed}[ns]");
h_Seed_TimeEBEB->GetXaxis()->SetRangeUser(FitLowRange, FitHighRange);
/** Set parms as parms of Fit Fxn **/
fitFcn->SetParameters(500, h_Seed_TimeEBEB->GetMean(), h_Seed_TimeEBEB->GetRMS() );
fitFcn->SetParNames("CONST", "#mu(ns)", "#sigma(ns)");
h_Seed_TimeEBEB->Fit("fitFcn", "LL"); /**Fit with improved LL**/
std::cout << "Printing Fit Parameters for EBEB ...... " << std::endl;
printf("Integral of function in EBEB = %g\n", fitFcn->Integral( FitLowRange, FitHighRange));
//*** retrive fit results***//
int npar = fitFcn->GetNpar();
TVirtualFitter *fit = TVirtualFitter::GetFitter();
fit->PrintResults(2,0.);
TMatrixD *CovMatrix = new TMatrixD ( npar, npar, fit->GetCovarianceMatrix() );
CovMatrix->Print();
TCanvas *c1 = new TCanvas("c1","EB-EB",200,10,800,900);
c1->SetGridx();
c1->SetGridy();
c1->GetFrame()->SetFillColor(21);
c1->GetFrame()->SetBorderMode(-1);
c1->GetFrame()->SetBorderSize(5);
/* c1->Divide(2,1); */
c1->cd();
h_Seed_TimeEBEB->Draw();
fitFcn->Draw("sames");
c1->SetLogy(0);
// draw the legend
TLegend *leg = new TLegend(0.15,0.72,0.3,0.85);
leg->SetTextFont(72);
leg->SetTextSize(0.04);
leg->AddEntry(h_Seed_TimeEBEB,"EB","lpe");
leg->AddEntry(fitFcn,"GAUS","l");
leg->Draw();
c1->SaveAs("Seed_Time_DoubleElectron_Run2012A-EB-EB.png");
}
void factorizeCorrs(){
bool doSpillover = false;
const double xTrkBinDouble[11] = {0.5,0.7,1.,2.,3.,4.,8.,12.,16.,20.,30.};
const string xCentBins[5] = {"Cent0", "Cent10", "Cent30","Cent50", "Cent100"};
const string xTrkBinStr[11] = {"TrkPt05","TrkPt07","TrkPt1","TrkPt2","TrkPt3","TrkPt4","TrkPt8","TrkPt12","TrkPt16","TrkPt20","TrkPt300"};
TFile *fsum;
//if(!doSpillover) fsum = new TFile("JFFcorrs_PythHydjet_sube0_finalJFFJEC_CymbalTune_finalCymbalCorrs_withFits.root");
if(!doSpillover) fsum = new TFile("JFFcorrs_PythHydjet_pTweighted_sube0_finalJFFJEC_withFits.root");
else fsum = new TFile("JFFcorrs_PythiaHydjet_subeNon0_finalJFFJEC_CymbalTune_finalCymbalCorrs_eta1p5_withFits.root");
TFile *fq = new TFile("JFFcorrs_PythiaHydjet_sube0_QuarkJets_finalJFFJEC_withFits.root");
TFile *fg = new TFile("JFFcorrs_PythiaHydjet_sube0_GluonJets_finalJFFJEC_withFits.root");
TFile *fhal = new TFile("/Users/kjung/Downloads/Inclusive_Hydjet_JFFResiduals.root");
TFile *fhalSpill = new TFile("/Users/kjung/Downloads/Inclusive_Hydjet_SpillOvers.root");
//TFile *fout;
//if(doSpillover){
// fout = new TFile("JFFcorrs_spilloverFromsube0_newJFFs.root","recreate");
// fout->cd();
//}
TH2D *hnum[10][4], *hden[10][4];
TH1D *fp1[10][4];
TH2D *hq[10][4];
TH2D *hg[10][4];
TH1D *fpq[10][4];
TH1D *fpg[10][4];
TH1D *fh[10][4];
TLatex *labels[4];
TCanvas *cc = new TCanvas("cc","",2000,1600);
cc->Divide(4,8);
TLatex *labels2[10][4];
TH1D *ptClosure[4];
TH1D *ptClosureFit[4];
TH1D *gptClosure[4];
TH1D *qptClosure[4];
TH1D *hptClosure[4];
TF1 *gausFit[10][4];
TF1 *gausFitg[10][4];
TF1 *gausFitq[10][4];
double *covMatrix[10][4];
double *qcovMatrix[10][4];
double *gcovMatrix[10][4];
for(int j=0; j<4; j++){
ptClosureFit[j] = new TH1D(Form("ptClosureFit_%d",j),"",10,xTrkBinDouble); ptClosureFit[j]->Sumw2();
ptClosure[j] = new TH1D(Form("ptClosure_%d",j),"",10,xTrkBinDouble); ptClosure[j]->Sumw2();
gptClosure[j] = new TH1D(Form("gptClosureFit_%d",j),"",10,xTrkBinDouble); gptClosure[j]->Sumw2();
qptClosure[j] = new TH1D(Form("qptClosure_%d",j),"",10,xTrkBinDouble); qptClosure[j]->Sumw2();
hptClosure[j] = new TH1D(Form("hptClosure_%d",j),"",10,xTrkBinDouble); hptClosure[j]->Sumw2();
if(doSpillover){
TGraphErrors *f1temp = (TGraphErrors*)fhalSpill->Get(Form("Integrals_%s_%s",xCentBins[j].c_str(),xCentBins[j+1].c_str()));
cout << "getting " << Form("Integrals_%s_%s",xCentBins[j].c_str(),xCentBins[j+1].c_str()) << endl;
for(int ibin=0; ibin<9; ibin++){
cout << "ibin " << ibin << endl;
cout << " content: "<< f1temp->GetY()[ibin] << endl;
cout << "error: "<< f1temp->GetEY()[ibin] << endl;
hptClosure[j]->SetBinContent(ibin+2, f1temp->GetY()[ibin]);
if(f1temp->GetEY()[ibin]) hptClosure[j]->SetBinError(ibin+2, f1temp->GetEY()[ibin]);
else hptClosure[j]->SetBinError(ibin+1, 0.0001);
}
}
for(int i=0; i<10; i++){
hnum[i][j] = (TH2D*)fsum->Get(Form("JFFcorrs_cent%d_pt%d",j,i))->Clone(Form("den_cent%d_pt%d",j,i));
hq[i][j] = (TH2D*)fq->Get(Form("JFFcorrs_cent%d_pt%d",j,i))->Clone(Form("hq_jffCorr_cent%d_pt%d",j,i));
hg[i][j] = (TH2D*)fg->Get(Form("JFFcorrs_cent%d_pt%d",j,i))->Clone(Form("hg_jffCorr_cent%d_pt%d",j,i));
//if(i>0) fh[i][j] = (TH1D*)fhal->Get(Form("JFF_Residual_Eta_%s_%s_Pt100_Pt300_%s_%s",xCentBins[j].c_str(),xCentBins[j+1].c_str(),xTrkBinStr[i].c_str(),xTrkBinStr[i+1].c_str()))->Clone(Form("fh_cent%d_pt%d",j,i));
//if(doSpillover){
// hnum[i][j]->Add(hden[i][j],-1);
// hnum[i][j]->Write();
//}
//else hnum[i][j] = hden[i][j];
//hnum[i][j] = hden[i][j];
gausFit[i][j] = new TF1(Form("gausFit_%d_%d",i,j),"gaus+[3]",-1,1);
gausFit[i][j]->SetParLimits(0,0,1);
gausFit[i][j]->SetParLimits(2,9e-2,5e-1);
gausFit[i][j]->FixParameter(1,0);
if(i<4) gausFit[i][j]->FixParameter(3,0);
gausFitq[i][j] = new TF1(Form("qgausFit_%d_%d",i,j),"gaus+[3]",-1,1);
gausFitg[i][j] = new TF1(Form("ggausFit_%d_%d",i,j),"gaus+[3]",-1,1);
gausFitq[i][j]->SetParLimits(0,0,1);
gausFitq[i][j]->SetParLimits(2,9e-2,5e-1);
gausFitq[i][j]->FixParameter(1,0);
if(i<4) gausFitq[i][j]->FixParameter(3,0);
gausFitg[i][j]->SetParLimits(0,0,1);
gausFitg[i][j]->SetParLimits(2,9e-2,5e-1);
gausFitg[i][j]->FixParameter(1,0);
if(i<4) gausFitg[i][j]->FixParameter(3,0);
if(i>0 && i<10){
cc->cd(i*4+(3-j)+1-4);
int lowbin = hnum[i][j]->GetYaxis()->FindBin(-2.5);
int hibin = hnum[i][j]->GetYaxis()->FindBin(2.5);
fp1[i][j] = (TH1D*)hnum[i][j]->ProjectionX(Form("ipfx_%d%d",i,j),lowbin,hibin,"e");
fpq[i][j] = (TH1D*)hq[i][j]->ProjectionX(Form("qpfx_%d%d",i,j),0,-1,"e");
fpg[i][j] = (TH1D*)hg[i][j]->ProjectionX(Form("gpfx_%d%d",i,j),0,-1,"e");
fp1[i][j]->Rebin(5);
fpq[i][j]->Rebin(5);
fpg[i][j]->Rebin(5);
/*fp1[i][j]->Scale(1./fp1[i][j]->GetBinWidth(2)/ptClosure[j]->GetBinWidth(i+1));
fpq[i][j]->Scale(1./fpq[i][j]->GetBinWidth(2)/ptClosure[j]->GetBinWidth(i+1));
fpg[i][j]->Scale(1./fpg[i][j]->GetBinWidth(2)/ptClosure[j]->GetBinWidth(i+1));*/
if(doSpillover){
fp1[i][j]->Fit(gausFit[i][j],"BqN0","",-1.5,1.5);
TVirtualFitter *fitter = TVirtualFitter::GetFitter();
assert(fitter!=0);
covMatrix[i][j] = fitter->GetCovarianceMatrix();
fpg[i][j]->Fit(gausFitg[i][j],"BqN0","",-1.5,1.5);
fpq[i][j]->Fit(gausFitq[i][j],"BqN0","",-1.5,1.5);
}
fp1[i][j]->SetLineColor(1);
fpq[i][j]->SetLineColor(4);
fpg[i][j]->SetLineColor(2);
fp1[i][j]->GetXaxis()->SetRangeUser(-2.5,2.5);
fp1[i][j]->GetYaxis()->SetNdivisions(505);
fp1[i][j]->GetYaxis()->SetLabelSize(0.15);
fp1[i][j]->GetXaxis()->SetLabelSize(0.15);
fp1[i][j]->SetMaximum(fpg[i][j]->GetMaximum()*1.5);
fp1[i][j]->SetMinimum(fpq[i][j]->GetMinimum()*1.5);
//fh[i][j]->SetMarkerColor(kMagenta-2);
if(!doSpillover){
fp1[i][j]->Scale(1./fp1[i][j]->GetBinWidth(1)/ptClosure[j]->GetBinWidth(i+1));
fpq[i][j]->Scale(1./fpq[i][j]->GetBinWidth(1)/ptClosure[j]->GetBinWidth(i+1));
fpg[i][j]->Scale(1./fpg[i][j]->GetBinWidth(1)/ptClosure[j]->GetBinWidth(i+1));
}
fp1[i][j]->Draw();
//fpq[i][j]->Divide(fp1[i][j]);
//fpq[i][j]->Draw("same");
//fpg[i][j]->Divide(fp1[i][j]);
fpg[i][j]->Draw("same");
//fh[i][j]->Draw("same");
labels2[i][j] = new TLatex(-1,fp1[i][j]->GetMaximum()*0.65,Form("%f < pt < %f, %s-%s",xTrkBinDouble[i],xTrkBinDouble[i+1],xCentBins[j].c_str(),xCentBins[j+1].c_str()));
labels2[i][j]->SetTextSize(0.15);
labels2[i][j]->Draw("same");
double integrErr =0.;
int lowbin2 = fp1[i][j]->FindBin(-1.5);
int highbin2 = fp1[i][j]->FindBin(1.5);
double integr = fp1[i][j]->IntegralAndError(lowbin2, highbin2, integrErr, "width");
double integr2, integrErr2;
double gInteg, qInteg;
if(doSpillover){
integr = gausFit[i][j]->Integral(-1.5,1.5);// - gausFit[i][j]->GetParameter(3)*2.;
integrErr = calcIntegralError(gausFit[i][j]);
cout << "integral error: "<< integrErr << endl;
gInteg = gausFitg[i][j]->Integral(-1.5,1.5);// - gausFitg[i][j]->GetParameter(3)*2.;
qInteg = gausFitq[i][j]->Integral(-1.5,1.5);// - gausFitq[i][j]->GetParameter(3)*2.;
}
else{
gInteg = fpg[i][j]->Integral(lowbin2, highbin2,"width");
qInteg = fpq[i][j]->Integral(lowbin2, highbin2,"width");
}
ptClosure[j]->SetBinContent(i+1, integr);///ptClosure[j]->GetBinWidth(i+1));
cout << "eta Bin " << ptClosure[j]->GetBinCenter(i+1) << " content: "<< integr << endl;
if(doSpillover) ptClosure[j]->SetBinContent(i+1, ptClosure[j]->GetBinContent(i+1)/fp1[i][j]->GetBinWidth(2)/ptClosure[j]->GetBinWidth(i+1));
ptClosure[j]->SetBinError(i+1, integrErr);///ptClosure[j]->GetBinWidth(i+1));
//ptClosureFit[j]->SetBinContent(i+1, integr2/ptClosureFit[j]->GetBinWidth(i+1)/fp1[i][j]->GetBinWidth(2));
//ptClosureFit[j]->SetBinError(i+1, integrErr2/ptClosureFit[j]->GetBinWidth(i+1)/fp1[i][j]->GetBinWidth(2));
gptClosure[j]->SetBinContent(i+1, gInteg);///ptClosure[j]->GetBinWidth(i+1));
if(doSpillover) gptClosure[j]->SetBinContent(i+1, gptClosure[j]->GetBinContent(i+1)/fpg[i][j]->GetBinWidth(2)/ptClosure[j]->GetBinWidth(i+1));
gptClosure[j]->SetBinError(i+1, ptClosure[j]->GetBinError(i+1));
qptClosure[j]->SetBinContent(i+1, qInteg);///ptClosure[j]->GetBinWidth(i+1));
if(doSpillover) qptClosure[j]->SetBinContent(i+1, qptClosure[j]->GetBinContent(i+1)/fpq[i][j]->GetBinWidth(2)/ptClosure[j]->GetBinWidth(i+1));
qptClosure[j]->SetBinError(i+1, ptClosure[j]->GetBinError(i+1));
int hbinlow = fh[i][j]->FindBin(-1.5);
int hbinhi = fh[i][j]->FindBin(1.5);
if(!doSpillover){
hptClosure[j]->SetBinContent(i+1, fp1[i][j]->IntegralAndError(hbinlow,hbinhi,integrErr,"width"));
hptClosure[j]->SetBinError(i+1, integrErr);
}
cout << "cent bin " << j << " pt bin " << i << " integral: " << ptClosure[j]->GetBinContent(i+1) << " error: "<< ptClosure[j]->GetBinError(i+1) << endl;
cout << "cent bin " << j << " pt bin " << i << " gluon integral: " << gInteg << endl;
cout << "cent bin " << j << " pt bin " << i << " quark integral: " << qInteg << endl;
cout << "cent bin " << j << " pt bin " << i << " hallie integral: " << hptClosure[j]->GetBinContent(i+1) << endl;
}
}
}
TCanvas *c2 = new TCanvas("c2","",2000,400);
c2->Divide(4,1);
for(int j=0; j<4; j++){
c2->cd(4-j);
//if(doSpillover) ptClosure[j] = ptClosureFit[j];
ptClosure[j]->SetMaximum(0.7);
if(doSpillover) ptClosure[j]->SetMaximum(2.8);
ptClosure[j]->SetMinimum(-0.2-1*(!doSpillover));
ptClosure[j]->SetXTitle("Track p_{T} (GeV/c)");
if(!doSpillover) ptClosure[j]->SetYTitle("JFF Correction");
else ptClosure[j]->SetYTitle("Spillover Correction");
//ptClosure[j]->Divide(qptClosure[j]);
ptClosure[j]->Draw();
//ptClosureFit[j]->SetMarkerColor(2);
//ptClosureFit[j]->SetLineColor(2);
//if(doSpillover) ptClosureFit[j]->Draw("");
gptClosure[j]->SetMarkerColor(2);
//gptClosure[j]->SetYTitle("New/Old JFF Corrections");
gptClosure[j]->SetXTitle("Track p_{T} (GeV/c)");
//gptClosure[j]->Add(ptClosure[j],-1);
//gptClosure[j]->SetMaximum(0.4);
//gptClosure[j]->SetMinimum(-0.4);
gptClosure[j]->Draw("same");
qptClosure[j]->SetMarkerColor(4);
//qptClosure[j]->Add(ptClosure[j],-1);
qptClosure[j]->Draw("same");
hptClosure[j]->SetMarkerStyle(20);
hptClosure[j]->SetMarkerColor(kMagenta+2);
//hptClosure[j]->Draw("Same");
labels[j] = new TLatex(3,ptClosure[j]->GetMaximum()*0.75,Form("%s-%s",xCentBins[j].c_str(),xCentBins[j+1].c_str()));
labels[j]->SetTextSize(0.06);
labels[j]->Draw("same");
if(j==0){
cout << endl;
for(int ibin=1; ibin<=qptClosure[j]->GetNbinsX(); ibin++){
cout << qptClosure[j]->GetBinContent(ibin) << ", ";
}
cout << endl;
}
}
/*TFile *fout = new TFile("Spillover_gausFits.root","recreate");
fout->cd();
for(int j=0; j<4; j++){
for(int i=0; i<10; i++){
gausFit[i][j]->Write();
}
}
fout->Close();*/
}
void ratioPlots_Zxx()
{
// llbb_Mass_reco mfJetEta_450_600 mfJetEta_250_300 lljjMass_reco mjj_HighMass_reco drll_HighMass_reco
TString Variable = "Zxx_Mass_reco";
// TString Variable2 = "Zbb_Mass_reco";
TString x_title = "M_{llxx}";
Int_t N_Rebin = 10;
Double_t yTopLimit = 3;
TFile *f1 = TFile::Open("/home/fynu/amertens/storage/test/MG_PY6_/output/MG_PY6_/MG_PY6v9.root");
TH1D *h1 = (TH1D*)f1->Get(Variable);
h1->Sumw2();
// h1->Add((TH1D*)f1->Get(Variable2));
h1->SetDirectory(0);
f1->Close();
TFile *f2 = TFile::Open("/home/fynu/amertens/storage/test/aMCNLO_PY8_/output/aMCNLO_PY8_/aMCNLO_PY8v9.root");
TH1D *h2 = (TH1D*)f2->Get(Variable);
h2->Sumw2();
// h2->Add((TH1D*)f2->Get(Variable2));
h2->SetDirectory(0);
f2->Close();
/*
TFile *f3 = TFile::Open("/home/fynu/amertens/storage/test/MG_PY8_/output/MG_PY8_/MG_PY8.root");
TH1D *h3 = (TH1D*)f3->Get(Variable);
h3->SetDirectory(0);
f3->Close();
*/
// h1->Sumw2();
// h2->Sumw2();
// h3->Sumw2();
cout << "MG_PY6 : " << h1->Integral() << endl;
cout << "aMC@NLO_PY8 : " << h2->Integral() << endl;
//h1->Scale(1.0/151456.0);
//h2->Scale(1.0/1.45192e+09);
//h2->Scale(1./12132.9);
h1->Scale(1.0/h1->Integral());
h2->Scale(1.0/h2->Integral());
h1->Sumw2();
h2->Sumw2();
// h3->Scale(1.0/h3->Integral());
h1->Rebin(N_Rebin);
h2->Rebin(N_Rebin);
// h3->Rebin(N_Rebin);
TH1D *h1c = h1->Clone();
h1c->Sumw2();
TH1D *h2c = h2->Clone();
h2c->Sumw2();
TH1D *h1c2 = h1->Clone();
h1c2->Sumw2();
h2c->Add(h1c,-1);
h2c->Divide(h1c);
h1->SetTitle("");
h2->SetTitle("");
// h3->SetTitle("");
h1->SetLineColor(kRed);
// h3->SetLineColor(kGreen);
TCanvas *c1 = new TCanvas("c1","example",600,700);
TPad *pad1 = new TPad("pad1","pad1",0,0.5,1,1);
pad1->SetBottomMargin(0);
gStyle->SetOptStat(0);
pad1->Draw();
pad1->cd();
h2->DrawCopy();
// h3->DrawCopy("same");
h1->GetYaxis()->SetLabelSize(0.1);
h1->GetYaxis()->SetRangeUser(0, 0.2);// ,yTopLimit);
h1->GetYaxis()->SetTitleSize(0.06);
h1->GetYaxis()->SetTitleOffset(0.7);
h1->Draw("same");
TLegend *leg = new TLegend(0.6,0.7,0.89,0.89);
leg->SetLineColor(0);
leg->SetFillColor(0);
//leg->AddEntry(h1,"t#bar{t} uncertainty","f");
leg->AddEntry(h1,"MG5 + PY6","l");
leg->AddEntry(h2,"aMC@NLO + PY8","l");
// leg->AddEntry(h3,"MG5 + PY8","l");
leg->Draw();
c1->cd();
TPad *pad2 = new TPad("pad2","pad2",0,0,1,0.5);
pad2->SetTopMargin(0);
pad2->SetBottomMargin(0.4);
pad2->Draw();
pad2->cd();
pad2->SetGrid();
h2->SetStats(0);
h2->Divide(h1);
//h2->SetMarkerStyle(21);
h2->Draw("ep");
h2->GetYaxis()->SetLabelSize(0.1);
h2->GetYaxis()->SetRangeUser(-0.5, 2.5);// ,yTopLimit);
h2->GetYaxis()->SetTitle("aMC@NLO+PY8 / MG5+PY6");
h2->GetYaxis()->SetTitleSize(0.06);
h2->GetYaxis()->SetTitleOffset(0.7);
h2->GetXaxis()->SetLabelSize(0.1);
h2->GetXaxis()->SetTitle(x_title);
h2->GetXaxis()->SetTitleSize(0.16);
h2->GetXaxis()->SetTitleOffset(0.9);
// Double_t matrix[4][4];
h2->Fit("pol3","","",50.0,1200.0);
TF1 *ratio = h2->GetFunction("pol3");
TVirtualFitter *fitter = TVirtualFitter::GetFitter();
TMatrixD matrix(4,4,fitter->GetCovarianceMatrix());
Double_t errorPar00 = fitter->GetCovarianceMatrixElement(0,0);
Double_t errorPar11 = fitter->GetCovarianceMatrixElement(1,1);
Double_t errorPar22 = fitter->GetCovarianceMatrixElement(2,2);
Double_t errorPar33 = fitter->GetCovarianceMatrixElement(3,3);
// c1->cd();
matrix.Print();
//const TMatrixDSym m = matrix;
const TMatrixDEigen eigen(matrix);
const TMatrixD eigenVal = eigen.GetEigenValues();
const TMatrixD V = eigen.GetEigenVectors();
cout << "V" << endl;
V.Print();
cout << "eigenVal" << endl;
eigenVal.Print();
cout << "Recomputed diag" << endl;
//const TMatrixD Vt(TMatrixD::kTransposed,V);
//const TMatrixD Vinv = V.Invert();
const TMatrixD Vt(TMatrixD::kTransposed,V);
//cout << "V-1" << endl;
//Vinv.Print();
cout << "Vt" << endl;
Vt.Print();
const TMatrixD VAVt = Vt*matrix*V;
VAVt.Print();
const TVectorD FittedParam(4);
FittedParam(0) = fitter->GetParameter(0);
FittedParam(1) = fitter->GetParameter(1);
FittedParam(2) = fitter->GetParameter(2);
FittedParam(3) = fitter->GetParameter(3);
FittedParam.Print();
//const TVectorD FittedParamNB(4);
const TVectorD PNb = V*FittedParam;
cout << "Pnb" << endl;
PNb.Print();
cout << " Generating other parameters values " << endl;
cout <<" V " << V(0,0) << endl;
TRandom3 r;
const TVectorD NewP(4);
TH1D *hist100 = new TH1D("h100","h100",200,-5,5);
TH1D *hist200 = new TH1D("h200","h200",200,-5,5);
TH1D *hist400 = new TH1D("h400","h400",200,-5,5);
TH1D *hist600 = new TH1D("h600","h600",100,-5,5);
TH1D *hist800 = new TH1D("h800","h800",100,-5,5);
TH1D *hist1000 = new TH1D("h1000","h1000",100,-5,5);
TH1D *histp0 = new TH1D("p0","p0",100,-0.2,0.3);
TH1D *histp1 = new TH1D("p1","p1",100,0.0,0.01);
TH1D *histp2 = new TH1D("p2","p2",100,-0.00001,0);
TH1D *histp3 = new TH1D("p3","p3",100,0,0.000000002);
for (Int_t i = 0; i< 500; i++){
NewP(0) = r.Gaus(PNb(0),sqrt(eigenVal(0,0)));
NewP(1) = r.Gaus(PNb(1),sqrt(eigenVal(1,1)));
NewP(2) = r.Gaus(PNb(2),sqrt(eigenVal(2,2)));
NewP(3) = r.Gaus(PNb(3),sqrt(eigenVal(3,3)));
//NewP.Print();
//FittedParam.Print();
const TVectorD NewP2 = Vt*NewP;
//NewP2.Print();
histp0->Fill(NewP2(0));
histp1->Fill(NewP2(1));
histp2->Fill(NewP2(2));
histp3->Fill(NewP2(3));
TF1 *newFit=new TF1("test","[0]+x*[1]+[2]*pow(x,2)+[3]*pow(x,3)",0,1400);
newFit->SetParameters(NewP2(0),NewP2(1),NewP2(2),NewP2(3));
newFit->SetLineColor(kBlue);
Double_t area=0;
for(Int_t it=1; it < 16; it++){
//cout << "bin : " << it << " " << h1c2->GetBinContent(it) << endl;
area += h1c2->GetBinContent(it)*newFit->Eval(100*it+50);
}
//newFit->Draw("same");
//cout <<"val: " << newFit->Eval(200) << endl;
hist100->Fill(newFit->Eval(100)/area);
hist200->Fill(newFit->Eval(200)/area);
hist400->Fill(newFit->Eval(400)/area);
hist600->Fill(newFit->Eval(600)/area);
hist800->Fill(newFit->Eval(800)/area);
hist1000->Fill(newFit->Eval(1000)/area);
}
c1->cd();
TCanvas *c2 = new TCanvas("c2","c2",1000,1000);
c2->cd();
c2->Divide(3,2);
c2->cd(1);
hist100->Draw();
c2->cd(2);
hist200->Draw();
c2->cd(3);
hist400->Draw();
c2->cd(4);
hist600->Draw();
c2->cd(5);
hist800->Draw();
c2->cd(6);
hist1000->Draw();
Double_t m_100,m_200,m_400,m_600,m_800,m_1000;
Double_t s_100,s_200,s_400,s_600,s_800,s_1000;
hist100->Fit("gaus","","",0.3,1.2);
TVirtualFitter *fitter = TVirtualFitter::GetFitter();
m_100 = fitter->GetParameter(1);
s_100 = fitter->GetParameter(2);
hist200->Fit("gaus","","",0.5,1.2);
TVirtualFitter *fitter = TVirtualFitter::GetFitter();
m_200 = fitter->GetParameter(1);
s_200 = fitter->GetParameter(2);
hist400->Fit("gaus","","",0.8,1.2);
TVirtualFitter *fitter = TVirtualFitter::GetFitter();
m_400 = fitter->GetParameter(1);
s_400 = fitter->GetParameter(2);
hist600->Fit("gaus","","",0.8,1.3);
TVirtualFitter *fitter = TVirtualFitter::GetFitter();
m_600 = fitter->GetParameter(1);
s_600 = fitter->GetParameter(2);
hist800->Fit("gaus","","",0.5,2);
TVirtualFitter *fitter = TVirtualFitter::GetFitter();
m_800 = fitter->GetParameter(1);
s_800 = fitter->GetParameter(2);
hist1000->Fit("gaus","","",0.5,2.5);
TVirtualFitter *fitter = TVirtualFitter::GetFitter();
m_1000 = fitter->GetParameter(1);
s_1000 = fitter->GetParameter(2);
Double_t x[6],y[6],ym[6],yup[6],ydown[6];
x[0]=100; x[1]=200; x[2]=400;x[3]=600; x[4]=800; x[5]=1000;
yup[0]=ratio->Eval(100)+s_100;
yup[1]=ratio->Eval(200)+s_200;
yup[2]=ratio->Eval(400)+s_400;
yup[3]=ratio->Eval(600)+s_600;
yup[4]=ratio->Eval(800)+s_800;
yup[5]=ratio->Eval(1000)+s_1000;
ydown[0]=ratio->Eval(100)-s_100;
ydown[1]=ratio->Eval(200)-s_200;
ydown[2]=ratio->Eval(400)-s_400;
ydown[3]=ratio->Eval(600)-s_600;
ydown[4]=ratio->Eval(800)-s_800;
ydown[5]=ratio->Eval(1000)-s_1000;
y[0]=1+s_100/ratio->Eval(100);
y[1]=1+s_200/ratio->Eval(200);
y[2]=1+s_400/ratio->Eval(400);
y[3]=1+s_600/ratio->Eval(600);
y[4]=1+s_800/ratio->Eval(800);
y[5]=1+s_1000/ratio->Eval(1000);
ym[0]=-s_100/m_100;
ym[1]=-s_200/m_200;
ym[2]=-s_400/m_400;
ym[3]=-s_600/m_600;
ym[4]=-s_800/m_800;
ym[5]=-s_1000/m_1000;
TGraph* g = new TGraph(6,x,y);
TGraph* gm = new TGraph(6,x,ym);
TGraph* gup = new TGraph(6,x,yup);
TGraph* gdown = new TGraph(6,x,ydown);
TCanvas *c3 = new TCanvas("c3","c3",1000,1000);
c3->cd();
//gup->Draw("AC*");
//gdown->Draw("C*");
g->Draw("AC*");
gPad->SetBottomMargin(0.2);
gPad->SetLeftMargin(0.2);
gStyle->SetOptStat(0);
g->GetXaxis()->SetTitle("M_{Zbb}");
g->GetXaxis()->SetRangeUser(50,1100);
g->GetYaxis()->SetLabelSize(0.06);
g->GetYaxis()->SetTitle("Uncertainty");
g->GetYaxis()->SetTitleSize(0.06);
g->GetYaxis()->SetTitleOffset(1.4);
g->GetXaxis()->SetLabelSize(0.06);
g->GetXaxis()->SetTitleSize(0.06);
g->GetXaxis()->SetTitleOffset(1);
g->GetYaxis()->SetNdivisions(5);
TFile f("syst_zxx.root","recreate");
g->Write();
f.Close();
//gm->Draw("C*");
//g->SetMaximum(1);
//g->SetMinimum(-1);
//h2c->Draw("same");
TH1D *h22=h2->Clone();
TCanvas *c5 = new TCanvas("c5","c5",1000,1000);
gPad->SetBottomMargin(0.2);
gPad->SetLeftMargin(0.2);
gStyle->SetOptStat(0);
h22->Draw();
h22->GetXaxis()->SetRangeUser(50,1100);
h22->GetYaxis()->SetLabelSize(0.06);
h22->GetYaxis()->SetTitleSize(0.06);
h22->GetYaxis()->SetTitleOffset(1.4);
h22->GetXaxis()->SetLabelSize(0.06);
h22->GetXaxis()->SetTitleSize(0.06);
h22->GetXaxis()->SetTitleOffset(1);
ratio->SetLineColor(kRed);
ratio->Draw("same");
gup->Draw("C");
gdown->Draw("C");
TLegend *leg = new TLegend(0.6,0.7,0.89,0.89);
leg->SetLineColor(0);
leg->SetFillColor(0);
leg->AddEntry(h22,"aMC@NLO / MG5","lep");
leg->AddEntry(ratio,"best fit","l");
leg->AddEntry(gup,"Syst Error (#pm 1 #sigma)","l");
leg->Draw();
TCanvas *c4 = new TCanvas("c4","c4",1000,1000);
c4->Divide(2,2);
c4->cd(1);
histp0->Draw();
c4->cd(2);
histp1->Draw();
c4->cd(3);
histp2->Draw();
c4->cd(4);
histp3->Draw();
}
void Demo_TryExtrapolationInXT_Exp0_LogLogFits(Bool_t xt=kTRUE, Float_t expo=0.)
{
SetStyle();
gStyle->SetOptFile(0);
gStyle->SetOptStat(0);
gStyle->SetOptFit(0);
xt=kTRUE;
//define dummy histogram and some style parameters
TH1F *dum;
dum = new TH1F("dum","",160,5e-4,0.3);
dum->SetMinimum(1e-14);
dum->SetMaximum(1);
dum->SetTitle(Form(";x_{T};#sqrt{s}^{%0.1f} E d^{3}#sigma/dp^{3}",expo));
dum->SetLineWidth(0);
dum->SetStats(0);
dum->GetXaxis()->CenterTitle();
dum->GetYaxis()->CenterTitle();
dum->GetXaxis()->SetTitleSize(0.05);
dum->GetYaxis()->SetTitleSize(0.05);
dum->GetXaxis()->SetTitleOffset(1.17);
dum->GetYaxis()->SetTitleOffset(1.3);
gROOT->LoadMacro("/net/hidsk0001/d00/scratch/krajczar/ppRefForpPb_PilotRun/interpolation_HIN10005_kk/data_table_to_graph.C");
//get 7 TeV points
TGraphErrors *cms_7000_g = data_table_to_graph("cms",7000,xt,expo);
cms_7000_g->SetMarkerColor(kBlack);
TF1 *cms_7000_fit = new TF1("cms_7000_fit","[0]*pow(1.0+(x/[1]),[2])",10.*2./7000.,0.1);//Fit from 10 GeV/c
cms_7000_fit->SetLineWidth(1);
cms_7000_fit->SetParameters(3e22,2.5e-4,-7);
cms_7000_g->Fit(cms_7000_fit,"REMW0");
//get 2.36 TeV points
// TGraphErrors *cms_2360_g = data_table_to_graph("cms",2360,xt,expo);
// cms_2360_g->SetMarkerColor(kMagenta+3);
// TF1 *cms_2360_fit = new TF1("cms_2360_fit","[0]*pow(1.0+(x/[1]),[2])",2e-3,0.1);
// cms_2360_fit->SetLineWidth(1);
// cms_2360_fit->SetParameters(3e22,2.5e-4,-7);
// cms_2360_g->Fit(cms_2360_fit,"REMW0");
//get 2.76 TeV points (KK using existing txt files)
TGraphErrors *cms_2760_g = data_table_to_graph("cms",2760,xt,expo);
cms_2760_g->SetMarkerColor(kMagenta+3);
TF1 *cms_2760_fit = new TF1("cms_2760_fit","[0]*pow(1.0+(x/[1]),[2])",10.*2./2760.,0.1);//Fit from 10 GeV/c
cms_2760_fit->SetLineColor(kMagenta+3);
cms_2760_fit->SetLineWidth(1);
cms_2760_fit->SetParameters(3e22,2.5e-4,-7);
cms_2760_g->Fit(cms_2760_fit,"REMW0");
//get 1.96 TeV points
TGraphErrors *cdf_1960_g = data_table_to_graph("cdf",1960,xt,expo);
cdf_1960_g->SetMarkerColor(kOrange-3);
cdf_1960_g->SetMarkerStyle(30);
//TGraphErrors *cdfold_1960_g = data_table_to_graph("cdfold",1960,xt);
//cdfold_1960_g->SetMarkerColor(kBlue);
//cdfold_1960_g->SetMarkerStyle(30);
TF1 *cdf_1960_fit = new TF1("cdf_1960_fit","[0]*pow(1.0+(x/[1]),[2])",2.*10./1960.,0.1);//Fit from 10 GeV/c
cdf_1960_fit->SetLineColor(kOrange-3);
cdf_1960_fit->SetLineWidth(1);
cdf_1960_fit->SetParameters(3e22,2.5e-4,-7);
cdf_1960_g->Fit(cdf_1960_fit,"REMW0");
//get 1.8 TeV points
TGraphErrors *cdf_1800_g = data_table_to_graph("cdf",1800,xt,expo);
cdf_1800_g->SetMarkerColor(kGreen+3);
cdf_1800_g->SetMarkerStyle(28);
TF1 *cdf_1800_fit = new TF1("cdf_1800_fit","[0]*pow(1.0+(x/[1]),[2])",2.*10./1800.,0.1);//Fit from 10 GeV/c
cdf_1800_fit->SetLineColor(kGreen+3);
cdf_1800_fit->SetLineWidth(1);
cdf_1800_fit->SetParameters(3e22,2.5e-4,-7.2);
cdf_1800_fit->FixParameter(2,-7.2);
cdf_1800_g->Fit(cdf_1800_fit,"REMW0");
//get 0.9 TeV points
TGraphErrors *cms_900_g = data_table_to_graph("cms",900,xt,expo);
cms_900_g->SetMarkerColor(kRed);
TF1 *cms_900_fit = new TF1("cms_900_fit","[0]*pow(1.0+(x/[1]),[2])",2.*10./900.,0.01);//Fit from 10 GeV/c
cms_900_fit->SetLineColor(kRed);
cms_900_fit->SetLineWidth(1);
cms_900_fit->SetParameters(3e22,2.5e-4,-7);
cms_900_g->Fit(cms_900_fit,"REMW0");
// TGraphErrors *ua1_900_g = data_table_to_graph("ua1",900,xt,expo);
// ua1_900_g->SetMarkerColor(kCyan+1);
// ua1_900_g->SetMarkerStyle(26);
// get 0.63 TeV points
TGraphErrors *cdf_630_g = data_table_to_graph("cdf",630,xt,expo);
cdf_630_g->SetMarkerColor(kOrange+3);
cdf_630_g->SetMarkerStyle(27);
//draw graphs to canvas
TCanvas *c1 = new TCanvas("c1","spectra interpolation",600,600);
dum->Draw();
//Fits are already drawn, no draw the points on top of the fits
cdf_1960_g->Draw("pz");
//cdfold_1960_g->Draw("pz");
// cdf_1800_g->Draw("pz");
// if(!xt) ua1_900_g->Draw("pz"); // abs(eta) within 2.5 changes high xt behavior
// cdf_630_g->Draw("pz");
cms_900_g->Draw("pz"); // draw the CMS points on top
// cms_2360_g->Draw("pz");
cms_2760_g->Draw("pz"); //KK
cms_7000_g->Draw("pz");
//make legend
TLegend *leg1 = new TLegend(0.2,0.21,0.50,0.51,"p+p(#bar{p})");
leg1->SetBorderSize(0);
leg1->SetFillStyle(1);
leg1->SetFillColor(0);
leg1->AddEntry(cms_7000_g,"7 TeV (CMS)","lp");
leg1->AddEntry(cms_2760_g,"2.76 TeV (CMS)","lp");
// leg1->AddEntry(cms_2360_g,"2.36 TeV (CMS)","lp");
leg1->AddEntry(cdf_1960_g,"1.96 TeV (CDF)","lp");
// leg1->AddEntry(cdf_1800_g,"1.8 TeV (CDF)","lp");
leg1->AddEntry(cms_900_g,"0.9 TeV (CMS)","lp");
// if(!xt) leg1->AddEntry(ua1_900_g,"0.9 TeV (UA1) |#eta|<2.5","lp");
// leg1->AddEntry(cdf_630_g,"0.63 TeV (CDF)","lp");
leg1->Draw();
gPad->SetLogy();
//if(xt) gPad->SetLogx();
gPad->SetLogx();
cms_7000_fit->Draw("same");
cms_2760_fit->Draw("same");
cdf_1960_fit->Draw("same");
// cdf_1800_fit->Draw("same");
cms_900_fit->Draw("same");
TCanvas *c3 = new TCanvas("c3","Individual xT fits, residuals",600,500);
TH1F *hratio = new TH1F("hratio",";x_{T};ratio",160,0.0003,0.07); //was 0.003-0.04
hratio->SetMaximum(2.0);
hratio->SetMinimum(0.0);
hratio->SetStats(0);
hratio->Draw();
TGraphErrors* ratio_cdf_1960_g = divide_graph_by_function(cdf_1960_g,cdf_1960_fit);
ratio_cdf_1960_g->SetName("ratio_cdf_1960_g");
ratio_cdf_1960_g->SetLineColor(kOrange-9);
ratio_cdf_1960_g->SetMarkerSize(0.9);
ratio_cdf_1960_g->Draw("samepz");
TF1 *fit1960 = new TF1("fit1960","[0]+[1]*log(x)+[2]/x/x",0.001,0.035);
fit1960->SetLineWidth(2);
fit1960->SetLineColor(kOrange-3);
ratio_cdf_1960_g->Fit(fit1960,"REMW");
fit1960->Draw("same");
// TGraphErrors* ratio_cdf_1800_g = divide_graph_by_function(cdf_1800_g,cdf_1800_fit);
// ratio_cdf_1800_g->Draw("samepz");
// TGraphErrors* ratio_cdf_630_g = divide_graph_by_function(cdf_630_g,merge_fit);
//ratio_cdf_630_g->Draw("pz");
TGraphErrors* ratio_cms_7000_g = divide_graph_by_function(cms_7000_g,cms_7000_fit);
ratio_cms_7000_g->SetName("ratio_cms_7000_g");
ratio_cms_7000_g->Draw("samepz");
TF1 *fit7000 = new TF1("fit7000","[0]+[1]*x+[2]*x*x+[3]*x*x*x",0.001,0.1);
fit7000->SetLineWidth(2);
ratio_cms_7000_g->Fit(fit7000,"REMW");
TGraphErrors* ratio_cms_2760_g = divide_graph_by_function(cms_2760_g,cms_2760_fit);
ratio_cms_2760_g->SetName("ratio_cms_2760_g");
ratio_cms_2760_g->SetLineColor(kMagenta+3);
ratio_cms_2760_g->Draw("samepz");
TF1 *fit2760 = new TF1("fit2760","[0]+[1]*x+[2]*x*x+[3]*x*x*x",0.001,0.1);
fit2760->SetLineWidth(2);
fit2760->SetLineColor(kMagenta+3);
ratio_cms_2760_g->Fit(fit2760,"REM");//REMW
TGraphErrors* ratio_cms_900_g = divide_graph_by_function(cms_900_g,cms_900_fit);
ratio_cms_900_g->SetName("ratio_cms_900_g");
ratio_cms_900_g->Draw("samepz");
TF1 *fit900 = new TF1("fit900","[0]+[1]*x+[2]*x*x+[3]*x*x*x",0.007,0.1);
fit900->SetParameters(5.61766e-01,5.24904e+01,-2.27817e+03,3.43955e+04);
fit900->SetLineWidth(2);
fit900->SetLineColor(2);
ratio_cms_900_g->Fit(fit900,"REM");//REMW
ratio_cms_900_g->SetLineColor(kRed);
TGaxis *A1 = new TGaxis(0.0003,7.0,0.07,7.0,2510*0.0003,2510*0.07,410,"-");
A1->SetTitle("p_{T} for #sqrt{s}=5.02 TeV");
A1->Draw();
//Real fit should be the fit*resid
TH1D *h900 = new TH1D("h900","900 GeV fitted spectra;x_{T}",30400,0.005,0.05);
h900->SetLineColor(kRed);
TH1D *h1960 = new TH1D("h1960","1.96 TeV fitted spectra;x_{T}",30400,0.005,0.05);
h1960->SetLineColor(kOrange-3);
TH1D *h7000 = new TH1D("h7000","7 TeV fitted spectra;x_{T}",30400,0.005,0.05);
TH1D *h1800 = new TH1D("h1800","1.8 TeV fitted spectra;x_{T}",30400,0.005,0.05);
h1800->SetLineColor(kGreen+3);
TH1D *h630 = new TH1D("h630","0.63 TeV fitted spectra;x_{T}",30400,0.005,0.05);
h630->SetLineColor(kOrange+3);
TH1D *h2760_EdTxt = new TH1D("h2760_EdTxt","2.76 TeV fitted spectra;x_{T}",30400,0.005,0.05);
h2760_EdTxt->SetLineColor(kMagenta+3);
for(int hbin=1; hbin<=30400; hbin++) {
float xtbin = h900->GetBinCenter(hbin);
h900->SetBinContent(hbin,cms_900_fit->Eval(xtbin)*fit900->Eval(xtbin));
h1960->SetBinContent(hbin,cdf_1960_fit->Eval(xtbin)*fit1960->Eval(xtbin));
h7000->SetBinContent(hbin,cms_7000_fit->Eval(xtbin)*fit7000->Eval(xtbin));
h2760_EdTxt->SetBinContent(hbin,cms_2760_fit->Eval(xtbin)*fit2760->Eval(xtbin));
}
TCanvas *c5 = new TCanvas("c5","final x_{T} fits",600,500);
TH1D* dumDirectInt = new TH1D("dumDirectInt","Final fits; x_{T} (GeV/c)",120,5e-4,0.3);
dumDirectInt->SetMaximum(1);
dumDirectInt->SetMinimum(1e-14);
dumDirectInt->GetXaxis()->SetRangeUser(0.5,120.);
dumDirectInt->SetStats(0);
dumDirectInt->GetYaxis()->SetTitle("Ed^{3}#sigma/dp^{3}");
dumDirectInt->Draw();
h900->Draw("same");
h1960->Draw("same");
h7000->Draw("same");
h2760_EdTxt->Draw("same");
gPad->SetLogy();
gPad->SetLogx();
// inspect direct interpolations
TCanvas *c6 = new TCanvas("c6","interpolations",600,500);
c6->Divide(3,4);
float s[6]; float xs[6]; float es[6]={0.0,0.0,0.0,0.0,0.0,0.0}; float exs[6]; TGraphErrors *gXS[12];
float s_log[6]; float xs_log[6]; float es_log[6]={0.0,0.0,0.0,0.0,0.0,0.0}; float exs_log[6];
TGraphErrors *gXS_log[12]; //KK test
TGraphErrors *gXS_log_lemma[12]; //KK test
float s1[1]={2.76}; float xs1[1]; float ex1[1]={0.0}; float ey1[1]; TGraphErrors *gXS1[12];
float s1_5020[1]={5.02}; float xs1_5020[1]; float ex1_5020[1]={0.0}; float ey1_5020[1]; TGraphErrors *gXS1_5020[12];
float s2[1]={2.76}; float xs2[1]; float ex2[1]={0.0}; float ey2[1]; TGraphErrors *gXS2[12];
float s2_5020[1]={5.02}; float xs2_5020[1]; float ex2_5020[1]={0.0}; float ey2_5020[1]; TGraphErrors *gXS2_5020[12];
float s900[1]={0.9}; float xs900[1]; float ex900[1]={0.0}; float ey900[1]; TGraphErrors *gXS900[12];
float s1960[1]={1.96}; float xs1960[1]; float ex1960[1]={0.0}; float ey1960[1]; TGraphErrors *gXS1960[12];
float s2760[1]={2.76}; float xs2760[1]; float ex2760[1]={0.0}; float ey2760[1]; TGraphErrors *gXS2760[12];
float s7000[1]={7.0}; float xs7000[1]; float ex7000[1]={0.0}; float ey7000[1]; TGraphErrors *gXS7000[12];
TF1 *fitXS[12]; TH1F *dumXS[12];
TF1 *fitXS_log[12];
float xtbins[12]={0.0051,0.007,0.01,0.015,0.02,0.025,0.03,0.035,0.04,0.042,0.045,0.049};
//2pT/sqrt(s) = xT ==>> xT=0.0051 -> pT=12.8 GeV/c; xT=0.049 -> pT=123 GeV/c
//errors
TMVA::TSpline1 *err_cms_900_xt = errors_from_graph(cms_900_g,0.115);
TMVA::TSpline1 *err_cms_2760_xt = errors_from_graph(cms_2760_g,0.11);
TMVA::TSpline1 *err_cms_7000_xt = errors_from_graph(cms_7000_g,0.04);
TMVA::TSpline1 *err_cdf_1960_xt = errors_from_graph(cdf_1960_g,0.06);
for(Int_t ipt=0; ipt<=11; ipt++) {
c6->cd(ipt+1);
int npoints=0;
xs[npoints]=h900->GetBinContent(h900->FindBin(xtbins[ipt])); s[npoints]=0.9; exs[npoints]=err_cms_900_xt->Eval(xtbins[ipt])*xs[npoints]; xs900[0]=xs[npoints]; ey900[0]=exs[npoints];
xs_log[npoints]=log10(xs[npoints]); s_log[npoints]=log10(s[npoints]); exs_log[npoints]=TMath::Max(fabs(log10(xs[npoints]-exs[npoints])-log10(xs[npoints])),fabs(log10(xs[npoints]+exs[npoints])-log10(xs[npoints])));
npoints++;
xs[npoints]=h1960->GetBinContent(h1960->FindBin(xtbins[ipt])); s[npoints]=1.96; exs[npoints]=err_cdf_1960_xt->Eval(xtbins[ipt])*xs[npoints]; xs1960[0]=xs[npoints]; ey1960[0]=exs[npoints];
xs_log[npoints]=log10(xs[npoints]); s_log[npoints]=log10(s[npoints]); exs_log[npoints]=TMath::Max(fabs(log10(xs[npoints]-exs[npoints])-log10(xs[npoints])),fabs(log10(xs[npoints]+exs[npoints])-log10(xs[npoints])));
npoints++;
xs[npoints]=h2760_EdTxt->GetBinContent(h2760_EdTxt->FindBin(xtbins[ipt])); s[npoints]=2.76; exs[npoints]=err_cms_2760_xt->Eval(xtbins[ipt])*xs[npoints]; xs2760[0]=xs[npoints]; ey2760[0]=exs[npoints];
xs_log[npoints]=log10(xs[npoints]); s_log[npoints]=log10(s[npoints]); exs_log[npoints]=TMath::Max(fabs(log10(xs[npoints]-exs[npoints])-log10(xs[npoints])),fabs(log10(xs[npoints]+exs[npoints])-log10(xs[npoints])));
npoints++;
xs[npoints]=h7000->GetBinContent(h7000->FindBin(xtbins[ipt])); s[npoints]=7.0; exs[npoints]=err_cms_7000_xt->Eval(xtbins[ipt])*xs[npoints]; xs7000[0]=xs[npoints]; ey7000[0]=exs[npoints];
xs_log[npoints]=log10(xs[npoints]); s_log[npoints]=log10(s[npoints]); exs_log[npoints]=TMath::Max(fabs(log10(xs[npoints]-exs[npoints])-log10(xs[npoints])),fabs(log10(xs[npoints]+exs[npoints])-log10(xs[npoints])));
npoints++;
dumXS[ipt] = new TH1F(Form("dumXS%d",ipt),Form("p_{T} = %0.0f GeV/c;#sqrt{s} [TeV]",xtbins[ipt]),100,0,20);
dumXS[ipt]->SetMinimum(0.25*xs[npoints-1]);
dumXS[ipt]->SetMaximum(4.0*xs[0]);
dumXS[ipt]->SetStats(0);
dumXS[ipt]->GetXaxis()->SetRangeUser(0.5,10.0);
dumXS[ipt]->GetXaxis()->CenterTitle();
dumXS[ipt]->GetYaxis()->CenterTitle();
dumXS[ipt]->GetYaxis()->SetTitle("Ed#sigma^{3}/dp^{3}");
dumXS[ipt]->GetXaxis()->SetTitleSize(0.10);
dumXS[ipt]->GetYaxis()->SetTitleSize(0.10);
dumXS[ipt]->GetYaxis()->SetLabelSize(0.10);
dumXS[ipt]->GetXaxis()->SetLabelSize(0.10);
dumXS[ipt]->GetXaxis()->SetTitleOffset(0.6);
dumXS[ipt]->GetYaxis()->SetTitleOffset(0.8);
dumXS[ipt]->Draw();
gPad->SetLogy();
gPad->SetLogx();
std::cerr<< "npoints: " << npoints << std::endl;
gXS[ipt] = new TGraphErrors(npoints,s,xs,es,exs); gXS[ipt]->SetName(Form("gXS%d",ipt));
gXS[ipt]->SetMarkerStyle(20);
gXS_log[ipt] = new TGraphErrors(npoints,s_log,xs_log,es_log,exs_log); gXS_log[ipt]->SetName(Form("gXS_log%d",ipt));
gXS900[ipt] = new TGraphErrors(1,s900,xs900,ex900,ey900); gXS900[ipt]->SetName(Form("gXS900_%d",ipt));
gXS900[ipt]->SetMarkerStyle(20); gXS900[ipt]->SetMarkerColor(kRed); gXS900[ipt]->Draw("pz");
gXS1960[ipt] = new TGraphErrors(1,s1960,xs1960,ex1960,ey1960); gXS1960[ipt]->SetName(Form("gXS1960_%d",ipt));
gXS1960[ipt]->SetMarkerStyle(30); gXS1960[ipt]->SetMarkerColor(kOrange-3); gXS1960[ipt]->Draw("pz");
gXS2760[ipt] = new TGraphErrors(1,s2760,xs2760,ex2760,ey2760); gXS2760[ipt]->SetName(Form("gXS2760_%d",ipt));
gXS2760[ipt]->SetMarkerStyle(20); gXS2760[ipt]->SetMarkerColor(kMagenta+3); gXS2760[ipt]->Draw("pz");
gXS7000[ipt] = new TGraphErrors(1,s7000,xs7000,ex7000,ey7000); gXS7000[ipt]->SetName(Form("gXS7000_%d",ipt));
gXS7000[ipt]->SetMarkerStyle(20); gXS7000[ipt]->SetMarkerColor(kBlack); gXS7000[ipt]->Draw("pz");
fitXS_log[ipt] = new TF1(Form("fitXS_log%d",ipt),"pol2",-0.52288,0.85733);
gXS_log[ipt]->Fit(fitXS_log[ipt], "REM0"); //"REMW");
// full covariance errors on fit
TVirtualFitter *fitter = TVirtualFitter::GetFitter();
TMatrixD matrix(3,3,fitter->GetCovarianceMatrix());
Double_t e00 = fitter->GetCovarianceMatrixElement(0,0);
Double_t e11 = fitter->GetCovarianceMatrixElement(1,1);
Double_t e22 = fitter->GetCovarianceMatrixElement(2,2);
Double_t e01 = fitter->GetCovarianceMatrixElement(0,1);
Double_t e02 = fitter->GetCovarianceMatrixElement(0,2);
Double_t e12 = fitter->GetCovarianceMatrixElement(1,2);
//Due to properties of the covariance matrix:
Double_t e10 = e01;
Double_t e20 = e02;
Double_t e21 = e12;
gXS_log_lemma[ipt] = new TGraphErrors(); gXS_log_lemma[ipt]->SetName(Form("gXS_log_lemma%d",ipt));
int kkk = 0;
for(int kk = log10(0.8*s[0])*10000.; kk <= log10(1.3*s[npoints-1])*10000.; kk++) {
float kk_lemma = kk/10000.;
float value = fitXS_log[ipt]->Eval(kk_lemma);
gXS_log_lemma[ipt]->SetPoint(kkk,TMath::Power(10,kk_lemma),TMath::Power(10,value));
kkk++;
}
gXS_log_lemma[ipt]->SetLineColor(2);
gXS_log_lemma[ipt]->Draw("same");
cout << "cov(0,0) = " << e00
<< "\ncov(1,1) = " << e11
<< "\ncov(2,2) = " << e22
<< "\ncov(0,1) = " << e01
<< "\ncov(0,2) = " << e02
<< "\ncov(1,2) = " << e12
<< endl;
//0.7007 = log10(5.02)
Double_t fullerr2 = e00 + e11*0.7007*0.7007 + e22*0.7007*0.7007*0.7007*0.7007 + 2*e01*0.7007 + 2*e02*0.7007*0.7007 + 2*e12*0.7007*0.7007*0.7007;
//Plan (1.,0.7007,0.7007^2)(COV)(1.,0.7007,0.7007^2):
Double_t where = 0.7007;
Double_t fullerr2_alternative = e00 + 2.*e01*where + 2.*e02*where*where + 2.*e12*where*where*where + e11*where*where + e22*where*where*where*where;
cout << "full covariance error = " << TMath::Sqrt(fullerr2) << endl;
cout << "full covariance error alternative: = " << TMath::Sqrt(fullerr2_alternative) << endl;
float error_in_percentage = 100.*(TMath::Power(10,TMath::Sqrt(fullerr2))-1.);
cout << " on " << fitXS_log[ipt]->Eval(0.7007) << std::endl;
cout << " error in percentage: " << error_in_percentage << std::endl;
//5020
xs2_5020[0] = TMath::Power(10,fitXS_log[ipt]->Eval(0.7007));
ey2_5020[0] = error_in_percentage*0.01*xs2_5020[0];
gXS2_5020[ipt] = new TGraphErrors(1,s2_5020,xs2_5020,ex2_5020,ey2_5020); gXS2_5020[ipt]->SetName(Form("gXS2_5020_%d",ipt));
gXS2_5020[ipt]->SetMarkerColor(7);
gXS2_5020[ipt]->SetLineColor(7);
gXS2_5020[ipt]->SetMarkerStyle(kOpenSquare);
gXS2_5020[ipt]->Draw("pz");
}
}