using namespace RooFit;

void test()
{
TFile *inFile_Rx =  TFile::Open("wspace_Rx.root");
RooWorkspace *ww_Rx = (RooWorkspace*)inFile_Rx->Get("ws_Rx");
RooRealVar *X = ww_Rx->var("PsProperDL");

ww_Rx->Print();

//-----------
//X->setBins(100);
//X->setRange(-0.3,0.3);
//cout << X->getBinning() << endl;

RooDataHist *RxHist_FS = (RooDataHist*)ww_Rx->data("RxHist_FS");
RooHistPdf *RxHistPdf_FS = new RooHistPdf("RxHistPdf_FS","RxHistPdf_FS",*X,*RxHist_FS,1);

RooDataHist *RxHist_FF = (RooDataHist*)ww_Rx->data("RxHist_FF");
RooHistPdf *RxHistPdf_FF = new RooHistPdf("RxHistPdf_FF","RxHistPdf_FF",*X,*RxHist_FF,1);


RooPlot *pp = X->frame();
RxHistPdf_FF->plotOn(pp,LineColor(kBlue));
RxHistPdf_FS->plotOn(pp,LineColor(kRed));
pp->Draw();

}