The documentation for the TTree says Various kinds of branches can be added to a tree: A - simple structures or list of variables. (may be for C or Fortran structures) B - any object (inheriting from TObject). (we expect this option be the most frequent) C - a ClonesArray. (a specialized object for collections of same class objects) My question is: must object inherit from TObject? Or is it sufficient that they be ClassDef'ed and ClassImp'ed? If they must be derived from TObject, then I assume I am forced to use Case A and list out every field I want as a TTree branch. -- o============o Sending unsolicited commercial e-mail (UCE) to this address Legal Notice is indication of your consent to pay me $120/hour for 1 hour o============o minimum for professional proofreading & technical assessment. Terrence Brannon * brannon@quake.usc.edu * http://quake.usc.edu/~brannon
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