I have a problem with RooDataHist when I am importing two TH1F histograms:
//Build categories RooCategory sample("sample","sample") ; sample.defineType("physics") ; sample.defineType("control") ; //Import data RooDataHist combData("combData","combined data",x,Index(sample),Import("physics",*hsig),Import("control",*hsdb)) ;
When I now plot my intial data and the data from the RooDataHist I have a different number of events (the RooDataHist has twice as much entries):
RooPlot* frame3 = x.frame() ; combData.plotOn(frame3,Cut("sample==sample::control")) ; frame3->Draw() ; hsig->DrawCopy("Same");
When I add 3 histogramms, they are scaled by a factor of 3.
Is there a possibility to avoid the scaling?
Thank you and kind regards