#include "RooStats/HistFactory/PiecewiseInterpolation.h"
#include "RooFit.h"
#include "Riostream.h"
#include "TBuffer.h"
#include "RooAbsReal.h"
#include "RooAbsPdf.h"
#include "RooErrorHandler.h"
#include "RooArgSet.h"
#include "RooRealVar.h"
#include "RooMsgService.h"
#include "RooNumIntConfig.h"
#include "RooTrace.h"
#include <exception>
#include <math.h>