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#ifndef samples_h
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#define samples_h
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#include <string>
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#include <vector>
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#include <TFile.h>
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#include <TH1F.h>
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#include <TTree.h>
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#include <iostream>
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#include <sstream>
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#include "TMath.h"
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#include <TCut.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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struct Sample {
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Sample();
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Sample( float xs, std::string n, std::string f, int c, bool isdata, float datalumi=-1., float nEvents=-1 )
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: xsec(xs),luminosity(datalumi),name(n),filename(f),color(c),data(isdata),f(0),nevents(nEvents) {}
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float lumi() { if(data) return luminosity; else return numberOfEvents()/xsec; }
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float lumi(double fA, double fB) { if(data) return luminosity; else return numberOfEvents(fA,fB)/xsec; }
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float scale(float l) { if(lumi()>0) return l/lumi(); else return 0;}
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float scale(float l, double fA, double fB) { if(lumi(fA,fB)>0) return l/lumi(fA,fB); else return 0;}
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float scale(float l, double fA, double fB, double *SF) {
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std::string DYL("DYL");
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std::string DYC("DYC");
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std::string DYNoB("DYNoB");
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std::string DYB("DYB");
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std::string TTbar("TTbar");
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if(lumi(fA,fB)>0){
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if(name == DYL || name == DYC || name == DYNoB)
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return SF[0]*l/lumi(fA,fB);
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else if(name == TTbar)
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return SF[1]*l/lumi(fA,fB);
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else if(name == DYB)
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return SF[2]*l/lumi(fA,fB);
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else
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return scale(l,fA,fB);
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}
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else
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return 0; }
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TFile * file() { if(f) return f; else return f=TFile::Open(filename.c_str());}
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float numberOfEvents( double fA, double fB )
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{
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if(data) return luminosity;
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double CountWithPU,CountWithPU2011B;
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double nOfEvents;
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if(nevents !=-1) return nevents;
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else
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{
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CountWithPU = ((TH1F*)file()->Get("CountWithPU"))->GetBinContent(1);
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CountWithPU2011B = ((TH1F*)file()->Get("CountWithPU2011B"))->GetBinContent(1);
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nOfEvents = fA*CountWithPU + fB*CountWithPU2011B;
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return nOfEvents;
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}
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}
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float numberOfEvents()
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{
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if(data) return luminosity;
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if(nevents !=-1) return nevents;
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else
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{
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return ((TH1F*)file()->Get("Count"))->GetBinContent(1);
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}
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}
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void dump(float l)
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{
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std::cout << name << "\t& " << xsec << "\t& " << lumi()/1000 << "/fb \t& " << scale(l) << "\t& " << numberOfEvents() << std::endl;
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// std::cout << name << "\t& " << xsec << "\t& " << lumi()/1000 << "/fb \t& " << scale(l) << std::endl;
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// std::cout << name << "\t& " << xsec << "\t& " << lumi()/1000 << std::endl;
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}
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void dump(float l, double fa, double fb)
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{
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std::cout << name << "\t& " << xsec << "\t& " << lumi(fa,fb)/1000 << "/fb \t& " << scale(l,fa,fb) << "\t& " << numberOfEvents(fa,fb) << std::endl;
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// std::cout << name << "\t& " << xsec << "\t& " << lumi()/1000 << "/fb \t& " << scale(l) << std::endl;
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// std::cout << name << "\t& " << xsec << "\t& " << lumi()/1000 << std::endl;
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}
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float bareCount(TCut iCut){
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float NpassedEvents = 0;
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file()->cd();
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NpassedEvents = ((TTree*)file()->Get("tree"))->Draw("H.dPhi", iCut, "goff");
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return NpassedEvents;
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}
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float bareCount(TCut iWeight, TCut iCut){
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float NpassedEvents = 0;
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file()->cd();
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NpassedEvents = ((TTree*)file()->Get("tree"))->Draw("H.dPhi", iWeight * iCut, "goff");
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return NpassedEvents;
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}
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float bareCountError(TCut iCut){ bareCountError_ = 0; if(bareCount(iCut)>0) bareCountError_ = TMath::Sqrt(bareCount(iCut)); return bareCountError_; }
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float count(TCut iCut){
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float NweightedEvents = 0;
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if(data)
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return bareCount(iCut);
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else{
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TH1F* histo;
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((TTree*)file()->Get("tree"))->Draw("H.dPhi>>histo", iCut, "goff");
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histo = (TH1F*)gDirectory->Get("histo");
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NweightedEvents = histo->Integral()/lumi();
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return NweightedEvents;
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}
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}
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float count(TCut iWeight, TCut iCut){
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float NweightedEvents = 0;
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if(data)
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return bareCount(iCut);
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else{
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TH1F* histo;
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((TTree*)file()->Get("tree"))->Draw("H.dPhi>>histo", iWeight*iCut, "goff");
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histo = (TH1F*)gDirectory->Get("histo");
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NweightedEvents = histo->Integral()/lumi();
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return NweightedEvents;
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}
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}
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float count(TCut iCut, double fA, double fB){
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float NweightedEvents = 0;
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if(data)
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return bareCount(iCut);
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else{
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TH1F* histo;
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((TTree*)file()->Get("tree"))->Draw("H.dPhi>>histo", iCut, "goff");
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histo = (TH1F*)gDirectory->Get("histo");
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NweightedEvents = histo->Integral()/lumi(fA, fB);
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return NweightedEvents;
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}
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}
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float count(TCut iWeight, TCut iCut, double fA, double fB){
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float NweightedEvents = 0;
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if(data)
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return bareCount(iCut);
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else{
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TH1F* histo;
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std::stringstream oss;
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srand( time(NULL) );
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int num = rand() % 10000 + 1;
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oss << num;
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std::string var("H.dPhi>>");
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std::string histoName("histo");
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histoName=histoName+name+oss.str();
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((TTree*)file()->Get("tree"))->Draw((var+histoName).c_str(), iWeight*iCut, "goff");
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histo = (TH1F*)gDirectory->Get(histoName.c_str());
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NweightedEvents = histo->Integral()/lumi(fA, fB);
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return NweightedEvents;
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}
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}
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float countError(TCut iCut){ countError_ = count(iCut)/bareCountError(iCut); return countError_; }
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float countError(TCut iWeight, TCut iCut, double fA, double fB){ countError_ = 0; if(bareCountError(iCut)>0) countError_ = count(iWeight,iCut,fA, fB)/bareCountError(iCut); return countError_; }
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float countError(TCut iCut, float systematicError ){
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float totalError=0;
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if(systematicError < 1)
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totalError = TMath::Sqrt( TMath::Power(count(iCut)/bareCountError(iCut),2) + TMath::Power( systematicError*count(iCut),2) );
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else
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std::cout << "Systematic error has to be espressed in %" << std::endl;
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return totalError;
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}
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float addSysError( float error, float systematicError ){ return TMath::Sqrt( TMath::Power(error,2) + TMath::Power( systematicError,2) ); }
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void setCountError( float newCountError ){
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countError_ = newCountError;
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}
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float countError_;
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float bareCountError_;
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float nevents;
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float xsec;
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float luminosity;
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std::string name;
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std::string filename;
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int color;
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bool data;
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TFile * f;
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};
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#endif
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