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#ifndef BTagCalibrationReader_H
#define BTagCalibrationReader_H
/**
* BTagCalibrationReader
*
* Helper class to pull out a specific set of BTagEntry's out of a
* BTagCalibration. TF1 functions are set up at initialization time.
*
************************************************************/
#include <memory>
#include <string>
#include "CondFormats/BTauObjects/interface/BTagEntry.h"
#include "CondFormats/BTauObjects/interface/BTagCalibration.h"
class BTagCalibrationReader {
public:
class BTagCalibrationReaderImpl;
BTagCalibrationReader() {}
BTagCalibrationReader(BTagEntry::OperatingPoint op,
const std::string& sysType = "central",
const std::vector<std::string>& otherSysTypes = {});
void load(const BTagCalibration& c, BTagEntry::JetFlavor jf, const std::string& measurementType = "comb");
double eval(BTagEntry::JetFlavor jf, float eta, float pt, float discr = 0.) const;
double eval_auto_bounds(const std::string& sys, BTagEntry::JetFlavor jf, float eta, float pt, float discr = 0.) const;
std::pair<float, float> min_max_pt(BTagEntry::JetFlavor jf, float eta, float discr = 0.) const;
protected:
std::shared_ptr<BTagCalibrationReaderImpl> pimpl;
};
#endif // BTagCalibrationReader_H
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