Dear ROOT, I have two different ROOT ntuples, in two different files. I use the MakeClass method to give me a skeleton of code that allows me to create and fill histograms based on the contents of the two ntuples, and I can use these classes like so: .L MyCodeA.C MyCodeA a; a.Loop(); .L MyCodeB.C MyCodeB b; b.Loop(); By doing this, TFile objects are being created inside a and b, but I never get to see those. Now, I would like to compare the histograms made by a to those made by b. At this point, I believe I'm in a directory that belongs to b, so I can see the histograms made by b, but seeing the ones made by a is harder. I know that I can see a list of those histograms via something like: TFile* f1 = (TFile*)gROOT->GetListOfFiles()->FindObject("/path/name/of/file"); f1.Print(); but I seem to have trouble then grabbing the histograms in said list. So how can I get to use both sets of histograms simultaneously? And is there a way to do this without going through gROOT? I feel like I did things like this in PAW, and that it was much easier! Thanks, best wishes. Ken ------------------------------------------------------------------------------ Ken Bloom, Karma Adjuster Department of Physics 734-763-2329 / 734-936-1817 (fax) University of Michigan kenbloom@umich.edu http://www.umich.edu/~kenbloom
This archive was generated by hypermail 2b29 : Sat Jan 04 2003 - 23:50:43 MET