Hi. I'm trying to project an ntuple into a histogram which I defined so that I can control the number of bins used. e.g. TH1F h1 = new TH1F("blat", "quat", 20, 4.5, 6); ntuple->Draw("m>>+h1", "(4.5<m)&&(m<6.0)"); h1->Draw(); I also tryed m>>h1, but the ntuple->Draw command always picks its own choice for number of bins and h1 always seems to remain empty. If I don't predefine h1 then it gets created and properly filled but I don't have control over the number of bins. Is there a way to do this easily (i.e. without looping trough the ntuple and filling the histogram event by event)? Thanks. Stephen Bailey
This archive was generated by hypermail 2b29 : Tue Jan 04 2000 - 00:34:36 MET