#include "RooFit.h"
#include "Riostream.h"
#include "RooAddition.h"
#include "RooProduct.h"
#include "RooAbsReal.h"
#include "RooErrorHandler.h"
#include "RooArgSet.h"
#include "RooNameReg.h"
#include "RooNLLVar.h"
#include "RooChi2Var.h"
#include "RooMsgService.h"
#include <algorithm>
#include <cmath>