LinInterpVar.h

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// @(#)root/roostats:$Id:  cranmer $
// Author: Kyle Cranmer, Akira Shibata
/*************************************************************************
 * Copyright (C) 1995-2008, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/
 
#ifndef ROOSTATS_LININTERPVAR
#define ROOSTATS_LININTERPVAR
 
#include "RooAbsPdf.h"
#include "RooRealProxy.h"
#include "RooListProxy.h"
#include <vector>
 
class RooRealVar;
class RooArgList ;
 
namespace RooStats{
namespace HistFactory{
 
  class LinInterpVar : public RooAbsReal {
  public:
 
    LinInterpVar() = default;
    LinInterpVar(const char *name, const char *title,
                 const RooArgList& _paramList, double nominal, std::vector<double> low, std::vector<double> high);
 
    LinInterpVar(const char *name, const char *title);
    LinInterpVar(const LinInterpVar&, const char*);
 
    TObject* clone(const char* newname=nullptr) const override { return new LinInterpVar(*this, newname); }
 
 
  protected:
 
    RooListProxy _paramList ;
    double _nominal = 0;
    std::vector<double> _low;
    std::vector<double> _high;
 
    double evaluate() const override;
 
    ClassDefOverride(RooStats::HistFactory::LinInterpVar,1) // Piecewise linear interpolation
  };
}
}
 
#endif