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BbbUnfolder.cc
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BbbUnfolder.cc
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#include "BbbUnfolder.hh"
#include "Analysis.hh"
#include "FilledObservable.hh"
#include "DifferentialDataStructure.hh"
#include "VectorHelpers.hh"
#include <iostream>
using std::cout;
using std::endl;
#include <vector>
using std::vector;
#include <stdexcept>
using std::runtime_error;
using std::logic_error;
#include <math.h>
BbbUnfolder::BbbUnfolder( const Analysis & measured,
const Analysis & measuredmc,
const Analysis & hadronlevel ) :
Unfolder( measured, measuredmc, hadronlevel ) {}
void BbbUnfolder::unfold( FilledObservable* obs ) const {
// Check that all inputs are there:
if( not obs->containsAnalysis( hadronlevelAnalysis ) ) {
throw runtime_error( "BbbUnfolder::unfold: hadronlevel analysis not found: " +
hadronlevelAnalysis.getTag() );
}
if( not obs->containsAnalysis( measuredAnalysis ) ) {
throw runtime_error( "BbbUnfolder::unfold: measured analysis not found: " +
measuredAnalysis.getTag() );
}
if( not obs->containsAnalysis( measuredMCAnalysis ) ) {
throw runtime_error( "BbbUnfolder::unfold: measured MC analysis not found: " +
measuredMCAnalysis.getTag() );
}
// Get real and simulated data:
DataStructure* hadronlevel= obs->getDataStructure( hadronlevelAnalysis );
DataStructure* measured= obs->getDataStructure( measuredAnalysis );
DataStructure* measuredMC= obs->getDataStructure( measuredMCAnalysis );
vector<Double_t> valuesHadronlevel= hadronlevel->getValues();
vector<Double_t> valuesMeasuredMC= measuredMC->getValues();
vector<Double_t> valuesMeasured= measured->getValues();
Double_t neventsMeasured= measured->getNEvents();
Double_t neventsMeasuredMC= measuredMC->getNEvents();
Double_t neventsHadronlevel= hadronlevel->getNEvents();
// Calculate correction:
vector<Double_t> correctionFactors= divideChecked( valuesHadronlevel,
valuesMeasuredMC );
vector<Double_t> correctedValues= multiplyVectors( valuesMeasured,
correctionFactors );
vector<Double_t> errorsMeasured= measured->getErrors();
vector<Double_t> correctedErrors= multiplyVectors( errorsMeasured,
correctionFactors );
Double_t neventsCorrected= neventsMeasured*neventsHadronlevel/neventsMeasuredMC;
// Create corrected distribution:
DataStructure* correctedData= measured->clone();
correctedData->setValues( correctedValues );
correctedData->setErrors( correctedErrors );
correctedData->setNEvents( neventsCorrected );
Analysis correctedDataAnalysis( measuredAnalysis );
correctedDataAnalysis.setUnfoldSource( hadronlevelAnalysis.getSource() );
correctedDataAnalysis.setUnfoldMethod( "bbb" );
obs->setDataStructure( correctedData, correctedDataAnalysis );
// The End:
return;
}