#ifndef __CINT__
#include "RooGlobalFunc.h"
#endif
#include "RooRealVar.h"
#include "RooDataSet.h"
#include "RooGaussian.h"
#include "RooConstVar.h"
#include "RooPolyVar.h"
#include "RooProdPdf.h"
#include "RooPlot.h"
#include "TCanvas.h"
#include "TAxis.h"
#include "TH1.h"
#include "TH1F.h"
using namespace RooFit ;



void VarBinWidth_RooDataHist_eg()
{
	RooRealVar x_1("x1","x1",4,0,10) ;
	RooBinning rb(4,0,10);
	rb.addBoundary(1.);
	rb.addBoundary(2.);
	rb.addBoundary(6.);
	x_1.setBinning(rb);

	const Double_t binning[10] = {0.,1.,2.,6.,10.};

	TH1F sig_h_1 ("sig_histo", "signal_histogram", 4,0,*binning);

	sig_h_1.SetBinContent(1,20);
	sig_h_1.SetBinContent(2,50);
	sig_h_1.SetBinContent(3,50);
	sig_h_1.SetBinContent(4,30);
	
	RooDataHist sig1_hist("sig_hist","signal histogram ",RooArgList(x_1),&sig_h_1);

}