Hi H.Gerd, There is no API to do what you want. Although it is technically possible, I would like to discourage this approach. see : http://root.cern.ch/root/htmldoc/TTree.html section "Adding a branch to an existing Tree" You can make a copy of your Tree removing one or more branches. See examples in $ROOTSYS/tutorials/copytree.C, copytree3.C Rene Brun "H.-Gerd Rosarius" wrote: > > Hello Rooters, > > is it possible to delete a single branch including > all it's containing data from an existing root file? > > As far as I read it is possible with a tree but not with > a branch. Maybe I missed something and I should rtfm more > thoroughly. :o) > > Greetings, > > H.-Gerd Rosarius > > Tech-Stuff: > Using Root 3.05/03 built from source on a Debian Linux box.
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