Re: Filling a histogram with weight from other histogram

Hi Axel,

thank you for taking the time to answer.

I now make sure the histogram is know when I fill the histogram, but get a different error when filling the histogram with the nice and simple TTree::Draw:

    $ nt->Draw("pt", "eff->GetBinContent(eff->FindBin(pt))")     Error in <TTreeFormula::Compile>: Bad numerical expression : "eff.GetBinContent(eff.FindFixBin(pt))"

I tried casting that expression to some numeric types, but it didn't help.

I would really like to use some automatic drawing function instead of iterating over the tree by hand. Is there a way to make this work?

Cheers,

Benjamin

-- 
"Good judgment comes from experience. Experience comes from bad judgment."






application/pgp-signature attachment: Digital signature