Broken rf501_simultaneouspdf.py in dev3/nighlies

[VanyaBelyaev]

Check duplicate issues.

• Checked for duplicates

Description

Tutorial file rf501_imultaneouspdf.py inn dev3/latetx nightlies slot is broken.

central and right pltos do not show the fit curves.

Reproducer is simple:

( source /cvmfs/sft.cern.ch/lcg/views/dev3/latest/x86_64-el9-clang19-opt/setup.sh ; 
ipython -i $ROOTSYS/tutorials/roofit/roofit/rf501_simultaneouspdf.py )

LCG_108 (and other) LCG slots are OK (all three plots show the fit curves)

( source /cvmfs/sft.cern.ch/lcg/views/LCG_108/x86_64-el9-clang19-opt/setup.sh ; 
ipython -i $ROOTSYS/tutorials/roofit/roofit/rf501_simultaneouspdf.py )

Reproducer

Reproducer is simple:

( source /cvmfs/sft.cern.ch/lcg/views/dev3/latest/x86_64-el9-clang19-opt/setup.sh ; 
ipython -i $ROOTSYS/tutorials/roofit/roofit/rf501_simultaneouspdf.py )

LCG_108 (and other) LCG slots are OK (all three plots show the fit curves)

( source /cvmfs/sft.cern.ch/lcg/views/LCG_108/x86_64-el9-clang19-opt/setup.sh ; 
ipython -i $ROOTSYS/tutorials/roofit/roofit/rf501_simultaneouspdf.py )

ROOT version

ROOT from dev3/latest LCG nightly slot

Installation method

cvmsf LCG nighlied dev2/latet lot

Operating system

Linux, lxplus

Additional context

No response

[guitargeek]

Thank you very much for the report! I identified a8ef8b0 as the origin of the problem. I'm investigating.

[VanyaBelyaev]

Dear Jonas @guitargeek
It is nice to know the problem is promptly localized.
Hope to see a fix soon.
cheers, Vanya

[VanyaBelyaev]

One more issue with the same example.

With "new" ROOT there are many warning messages on duplicated arguments:

The comand :

( source /cvmfs/sft.cern.ch/lcg/views/dev3/latest/x86_64-el9-clang19-opt/setup.sh ; python $ROOTSYS/tutorials/roofit/roofit/rf501_simultaneouspdf.py | grep duplicated )

And the output is :

[#0] WARNING:InputArguments -- RooAbsPdf::plotOn(model) WARNING: argument ProjData is duplicated
[#0] WARNING:InputArguments -- RooAbsReal::plotOn(model) WARNING: argument ProjData is duplicated
[#0] WARNING:InputArguments -- RooAbsReal::plotOn(model) WARNING: argument Normalization is duplicated
[#0] WARNING:InputArguments -- RooAbsPdf::plotOn(model) WARNING: argument ProjData is duplicated
[#0] WARNING:InputArguments -- RooAbsReal::plotOn(model) WARNING: argument ProjData is duplicated
[#0] WARNING:InputArguments -- RooAbsReal::plotOn(model) WARNING: argument Normalization is duplicated
[#0] WARNING:InputArguments -- RooAbsPdf::plotOn(simPdf) WARNING: argument ProjData is duplicated
[#0] WARNING:InputArguments -- RooAbsReal::plotOn(simPdf) WARNING: argument ProjData is duplicated
[#0] WARNING:InputArguments -- RooAbsReal::plotOn(simPdf) WARNING: argument Normalization is duplicated
[#0] WARNING:InputArguments -- RooAbsPdf::plotOn(simPdf) WARNING: argument ProjData is duplicated
[#0] WARNING:InputArguments -- RooAbsReal::plotOn(simPdf) WARNING: argument ProjData is duplicated
[#0] WARNING:InputArguments -- RooAbsReal::plotOn(simPdf) WARNING: argument Normalization is duplicated
[#0] WARNING:InputArguments -- RooAbsPdf::plotOn(simPdf) WARNING: argument ProjData is duplicated
[#0] WARNING:InputArguments -- RooAbsReal::plotOn(simPdf) WARNING: argument ProjData is duplicated
[#0] WARNING:InputArguments -- RooAbsReal::plotOn(simPdf) WARNING: argument Normalization is duplicated
[#0] WARNING:InputArguments -- RooAbsPdf::plotOn(simPdf) WARNING: argument ProjData is duplicated
[#0] WARNING:InputArguments -- RooAbsReal::plotOn(simPdf) WARNING: argument ProjData is duplicated
[#0] WARNING:InputArguments -- RooAbsReal::plotOn(simPdf) WARNING: argument Normalization is duplicated

The messages are confusing. First of all, should one worry about these messages or not?

And there is no warnings for e.g. LCG_108:

The command:

 ( source /cvmfs/sft.cern.ch/lcg/views/LCG_108/x86_64-el9-clang19-opt/setup.sh ; python $ROOTSYS/tutorials/roofit/roofit/rf501_simultaneouspdf.py | grep duplicated )

and in this case the output is free from warnings on "duplicated" arguments.

The whole visuailsation business for simultaneous fits in multiple categories is a bit far from being crystal clear.
(I am not complaining - I understand that from the first principles it is not no-trivial issue and it cannot be absolutely clear). However, when one gets no expected results and sees (related?unrelated?) warnings, it is very confusing and worrysome.
Anyhow, in case these warnings are "expected" and "normal" for this context, it will be nice to suppress them.

[guitargeek]

Thank you for the additional report about these duplicate arguments warning! I have opened a PR to fix this, together with the original problem that you reported.