Mark Boulay wrote: > > Dear Root team: > I want to accomplish the following, and am not sure what > the best (if any) method is for doing it. I have a TTree which > contains a TClonesArray branch. When reading the tree, I would > like to test each object in the TClonesArray, and only use it > if it passes some test based on a flag I have set. I am currently > writing the TTree with splitlevel = 1, which contains an event-level > branch, which in turn contains the TClonesArray. > Mark, Please, be more specific with your question. What do you mean by "testing each object"? What is the difference between testing and using. See examples of a TTree in $ROOTSYS/test/Event and associated macros eventa and eventb. Rene Brun
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