Warning/error message while hadd-ing histos - is it safe to ignore it?

[Alkass]

Hello

While hadding histograms, I do get this error

Info in <TAxis::FindBin>: Label SS is not in the list and the axis is not alphanumeric - ignore it

and I think it relates to this , L337
https://root.cern.ch/doc/v606/TAxis_8cxx_source.html

So, my question is, is this just a warning and I can safely use the merged .root files output, or that suggests a deeper problem and maybe the output is compromised ?

Thanks,
Alex

[jalopezg]

Hi @Alkass; I am inviting @couet to this topic. I am sure he can provide a more accurate answer than I would do.

Cheers,
J.

[couet]

It looks like you are adding two histograms with alphanumeric binning which do have the same binning. Up to you to decide if it is a problem or not if the label, “SS” is missing in one of the histograms.