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Fit_FFOSSS_et.cc
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Fit_FFOSSS_et.cc
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#include <TLatex.h>
#include <TGraph.h>
#include "TGraphAsymmErrors.h"
#include "TROOT.h"
#include "TFile.h"
#include "TTree.h"
#include "TBrowser.h"
#include "TH1.h"
#include "TH2.h"
#include "TRandom.h"
#include "TCanvas.h"
#include "math.h"
#include "TGaxis.h"
#include "TLegend.h"
#include "TInterpreter.h"
#include "TCanvas.h"
#include "TSystem.h"
#include "TFile.h"
#include "TH2.h"
#include "TNtuple.h"
#include "TPaveLabel.h"
#include "TPaveText.h"
#include "TFrame.h"
#include "TSystem.h"
#include "TInterpreter.h"
#include "TMatrixD.h"
#include "TMinuit.h"
double square(double x)
{
return x*x;
}
void makeBinsInteger(TH1* histogram_pass, TH1* histogram_fail)
{
assert(histogram_pass->GetNbinsX() == histogram_fail->GetNbinsX());
int numBins = histogram_pass->GetNbinsX();
for ( int iBin = 1; iBin <= numBins; ++iBin ) {
if (histogram_pass->GetBinContent(iBin)<0){ histogram_pass->SetBinContent(iBin,0); histogram_pass->SetBinError(iBin,0);}
if (histogram_fail->GetBinContent(iBin)<0){ histogram_fail->SetBinContent(iBin,0); histogram_fail->SetBinError(iBin,0);}
double binContent_sum = histogram_pass->GetBinContent(iBin) + histogram_fail->GetBinContent(iBin);
double binError2_sum = square(histogram_pass->GetBinError(iBin)) + square(histogram_fail->GetBinError(iBin));
double binError_sum = TMath::Sqrt(binError2_sum);
if ( binContent_sum > 0. && binError_sum > 0. ) {
double nEff = square(binContent_sum/binError_sum);
double avWeight = binContent_sum/nEff;
double binContent_pass = TMath::Nint(histogram_pass->GetBinContent(iBin)/avWeight);
double binError_pass = TMath::Sqrt(binContent_pass);
histogram_pass->SetBinContent(iBin, binContent_pass);
histogram_pass->SetBinError(iBin, binError_pass);
double binContent_fail = TMath::Nint(histogram_fail->GetBinContent(iBin)/avWeight);
double binError_fail = TMath::Sqrt(binContent_fail);
histogram_fail->SetBinContent(iBin, binContent_fail);
histogram_fail->SetBinError(iBin, binError_fail);
}
}
}
double fitFunction(double x, double par0, double par1) {
return par0 + par1 *(x-40);
}
Double_t fitFunc_Exp3Par(Double_t *x, Double_t *par) {
return par[0] + par[1]* (x[0]-40);
}
Double_t fitFunc_Line2Par(Double_t *x, Double_t *par) {
//return par[0] + par[1] * x[0] + par[2] * x[0]* x[0] + par[3] * x[0]* x[0] *x[0];
return par[0] + par[1]* (x[0]-150);
//return par[0] + par[1]*x[0] + par[2]*(TMath::Landau(x[0],par[3],par[4],0));
//return par[0] + par[1]*(TMath::Landau(x[0],par[2],par[3],0));
//return par[0] + par[1]*(TMath::Exp(par[2] * x[0]-par[3]));
}
Double_t fitFunc_Line2Par2(Double_t *x, Double_t *par) {
return par[0] + par[1]* (x[0]-25);
}
TF1 *M_FR(int WP, std::string type, std::string files, std::string num, std::string denum, std::string name, TH2F * hist2D_lep, Double_t fMin, Double_t fMax, int year) {
//SetStyle();
TFile *inputFile = new TFile(files.c_str());
TH1D *Numerator = (TH1D*) inputFile->Get(num.c_str());
TH1D *Denumerator = (TH1D*) inputFile->Get(denum.c_str());
TH1D *histogram_pass = (TH1D*) Numerator->Rebin(1);
TH1D *histogram_fail = (TH1D*) Denumerator->Rebin(1);
makeBinsInteger(histogram_pass, histogram_fail);
TGraphAsymmErrors* TGraph_FR = new TGraphAsymmErrors(26);
TGraph_FR->Divide(histogram_pass, histogram_fail, "pois");
Double_t *yg = TGraph_FR->GetY();
for (int i = 0; i<5; i++) printf("yg[%d] = %g\n", i,yg[i]);
const int nPar = 2; // number of parameters in the fit
TF1 * theFit = new TF1("theFit", fitFunc_Line2Par, fMin, fMax, nPar);
if (name.find("closure_mt") < 140) theFit = new TF1("theFit", fitFunc_Line2Par2, fMin, fMax, nPar);
theFit->SetParameter(0, 1.0);
theFit->SetParameter(1, 0.01);
float xAxisMax = 500;
TGraph_FR->Fit("theFit", "R0");
TCanvas* canvas = new TCanvas("canvas", "", 800, 800);
canvas->SetTitle("");
canvas->SetGrid();
//TGraph_FR->GetYaxis()->SetRangeUser(0.00,1.5*yg[0]);
TGraph_FR->GetYaxis()->SetRangeUser(0.0,2.00);
TGraph_FR->GetYaxis()->SetTitle("Correction");
TGraph_FR->GetXaxis()->SetRangeUser(0,350);
TGraph_FR->GetXaxis()->SetTitle("m_{vis}(e,#tau_{h}) (GeV)");
if (name.find("closure_mt") < 140) TGraph_FR->GetXaxis()->SetTitle("m_{T}(e,MET) (GeV)");
TGraph_FR->SetTitle("");
TGraph_FR->Draw("PAE");
TGraph_FR->SetLineWidth(3);
std::string outNaming = name + ".pdf";
TLatex t = TLatex();
t.SetNDC();
t.SetTextFont(42);
t.SetTextAlign(12);
t.SetTextSize(0.04);
if (year==2016) t.DrawLatex(0.55, .96, "35.9 fb^{-1} (2016, 13 TeV)");
else if (year==2017) t.DrawLatex(0.55, .96, "41.5 fb^{-1} (2017, 13 TeV)");
else if (year==2018) t.DrawLatex(0.55, .96, "59.5 fb^{-1} (2018, 13 TeV)");
theFit->Draw("SAME");
theFit->SetLineColor(2);
// Up and down fits
Double_t TauLegParameters[2];
theFit->GetParameters(TauLegParameters);
Double_t matrix[2][2];
gMinuit->mnemat(&matrix[0][0],2);
TMatrixD mat_D(2,2);
for (int i=0; i<2; ++i){
for (int j=0; j<2; ++j){
mat_D[i][j]=matrix[i][j];
}
}
float aup; float adown; float bup; float bdown;
TMatrixDEigen mat_sym=TMatrixDEigen (mat_D);
TMatrixD eigenValues=mat_sym.GetEigenValues();
TMatrixD eigenVectors=mat_sym.GetEigenVectors();
TMatrixD eigenVectorsInverted=mat_sym.GetEigenVectors();
aup = TauLegParameters[0]+eigenVectorsInverted[0][0]*sqrt(eigenValues[0][0])+eigenVectorsInverted[0][1]*sqrt(eigenValues[1][1]);
bup = TauLegParameters[1]+eigenVectorsInverted[0][1]*sqrt(eigenValues[0][0])+eigenVectorsInverted[1][1]*sqrt(eigenValues[1][1]);
adown = TauLegParameters[0]-eigenVectorsInverted[0][0]*sqrt(eigenValues[0][0])-eigenVectorsInverted[0][1]*sqrt(eigenValues[1][1]);
bdown = TauLegParameters[1]-eigenVectorsInverted[0][1]*sqrt(eigenValues[0][0])-eigenVectorsInverted[1][1]*sqrt(eigenValues[1][1]);
float au1=TauLegParameters[0]+eigenVectorsInverted[0][0]*sqrt(eigenValues[0][0]);
float bu1=TauLegParameters[1]+eigenVectorsInverted[0][1]*sqrt(eigenValues[0][0]);
float ad1=TauLegParameters[0]-eigenVectorsInverted[0][0]*sqrt(eigenValues[0][0]);
float bd1=TauLegParameters[1]-eigenVectorsInverted[0][1]*sqrt(eigenValues[0][0]);
float au2=TauLegParameters[0]+eigenVectorsInverted[0][1]*sqrt(eigenValues[1][1]);
float bu2=TauLegParameters[1]+eigenVectorsInverted[1][1]*sqrt(eigenValues[1][1]);
float ad2=TauLegParameters[0]-eigenVectorsInverted[0][1]*sqrt(eigenValues[1][1]);
float bd2=TauLegParameters[1]-eigenVectorsInverted[1][1]*sqrt(eigenValues[1][1]);
TF1 * theFitup1 = new TF1("theFit2", fitFunc_Line2Par, fMin, fMax, 2);
if (name.find("closure_mt") < 140) theFitup1 = new TF1("theFit", fitFunc_Line2Par2, fMin, fMax, nPar);
theFitup1->SetParameter(0, au1);
theFitup1->SetParameter(1, bu1);
theFitup1->SetLineColor(kViolet+1);
theFitup1->Draw("same");
TF1 * theFitup2 = new TF1("theFit2", fitFunc_Line2Par, fMin, fMax, 2);
if (name.find("closure_mt") < 140) theFitup2 = new TF1("theFit", fitFunc_Line2Par2, fMin, fMax, nPar);
theFitup2->SetParameter(0, au2);
theFitup2->SetParameter(1, bu2);
theFitup2->SetLineColor(kGreen-3);
theFitup2->Draw("same");
TF1 * theFitdown1 = new TF1("theFit2", fitFunc_Line2Par, fMin, fMax, 2);
if (name.find("closure_mt") < 140) theFitdown1 = new TF1("theFit", fitFunc_Line2Par2, fMin, fMax, nPar);
theFitdown1->SetParameter(0, ad1);
theFitdown1->SetParameter(1, bd1);
theFitdown1->SetLineColor(kViolet+1);
theFitdown1->Draw("same");
TF1 * theFitdown2 = new TF1("theFit2", fitFunc_Line2Par, fMin, fMax, 2);
if (name.find("closure_mt") < 140) theFitdown2 = new TF1("theFit", fitFunc_Line2Par2, fMin, fMax, nPar);
theFitdown2->SetParameter(0, ad2);
theFitdown2->SetParameter(1, bd2);
theFitdown2->SetLineColor(kGreen-3);
theFitdown2->Draw("same");
TLegend *l = new TLegend(0.15, 0.74, 0.5, 0.89, NULL, "brNDC");
l->SetBorderSize(0);
l->SetFillColor(0);
l->SetTextSize(.03);
l->SetFillColor(0);
l->AddEntry(theFit, "Best fit", "l");
l->AddEntry(theFitup1, "1st uncertainty #pm 1#sigma", "l");
l->AddEntry(theFitup2, "2nd uncertainty #pm 1#sigma", "l");
l->Draw("same");
canvas->SaveAs(outNaming.c_str());
TFile *FR_H = new TFile("FF_QCDcorrectionOSSS.root", "UPDATE");
FR_H->cd();
theFit->SetName(TString(name));
theFit->Write();
theFitup1->SetName(TString(name)+"_unc1_up");
theFitup1->Write();
theFitdown1->SetName(TString(name)+"_unc1_down");
theFitdown1->Write();
theFitup2->SetName(TString(name)+"_unc2_up");
theFitup2->Write();
theFitdown2->SetName(TString(name)+"_unc2_down");
theFitdown2->Write();
FR_H->Close();
return theFit;
}
void Fit_FFOSSS_et(int year) {
gStyle->SetOptFit(1111);
TH2F * Fit_Value_tau = new TH2F("Fit_Value_tau", "Fit_Value_tau", 40, 0, 40, 40, 0, 40);
Double_t fMin = 0;
Double_t fMax = 1000;
TF1* m11 = M_FR(1, "Line2Par", "files_corrOSSSFF_et/DataSub.root", "et_0jet_qcd_iso", "et_0jet_qcd_anti", "closure_OSSS_mvis_et_qcd", Fit_Value_tau, fMin, fMax, year);
TF1* m19 = M_FR(9, "Line2Par2", "files_corr1FF_et/WMC2.root", "et_mt_w_iso/WMC2", "et_mt_w_anti/WMC2", "closure_mt_et_w", Fit_Value_tau, 0, 500, year);
}