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#ifndef JETRESOLUTION_H
#define JETRESOLUTION_H
#include <string>
#include <vector>
#include <TF1.h>
class JetCorrectorParameters;
class JetResolution {
//
// construction / destruction
//
public:
JetResolution();
JetResolution(const std::string& fileName, bool doGaussian = false);
virtual ~JetResolution();
double parameterEtaEval(const std::string& parameterName, float eta, float pt);
//
// member functions
//
public:
void initialize(const std::string& fileName, bool doGaussian = false);
const std::string& name() const { return name_; }
TF1* resolutionEtaPt(float eta, float pt) const;
TF1* resolution(const std::vector<float>& x, const std::vector<float>& y) const;
TF1* parameterEta(const std::string& parameterName, float eta);
TF1* parameter(const std::string& parameterName, const std::vector<float>& x);
const JetCorrectorParameters& parameters(int i) const { return *(parameters_[i]); }
//
// data members
//
private:
std::string name_;
mutable TF1* resolutionFnc_;
std::vector<TF1*> parameterFncs_;
std::vector<JetCorrectorParameters*> parameters_;
};
#endif
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