Hello, rooters!
Could you, please, give me an advise on the following:
I created function inside my root macro which essentialy
do the following:
void make_histo(TChain *t , TH1F* g, TH1F* b, TCut CUT ) {
t->Draw("p2.pt>>g");
t->Draw("p2.pt>>b",CUT);
g->Sumw2();
b->Sumw2();
}
Histogram I am getting on return are empty.
I cannot simply make:
t->Draw("p2.pt>>htemp");
TH1F *g = (TH1F*)htemp->Clone("g")
because I am using non-equidistant binning and need to pass
booked histo into subroutine.
Any idea how to make it work?
Thank you in advance,
Elena
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