RooSimultaneous + 2D . How to plot fit result?

Hi all,

I am trying to plot the fit results of a 2D RooSimultaneous fit,
so I have tried to mix these two tutorials

and write something like:

RooAbsPdf* simPdfx = simPdf.createProjection(y) ;

simPdfx.plotOn(frame1,Slice(sample,"physics"),ProjWData(sample,combData)) ;

but the PDF shows the wrong normalization (maybe because it is integrated over too many dimensions ?)

This seems to be a common problem that does not have an “official” answer (see posts below) so it’d be really helpful to have some instructions :wink:


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