How to edit the existing tree?

From: valeri@na.infn.it
Date: Sat Nov 22 1997 - 17:42:38 MET


Dear Root,

If I have the tree T with 1 branch "branch1" and several 
filled events "nevent" in file f.root how to:

1. Update the vertical structure if the tree
   - add new events to the file
   - change the existing event in the file
   - insert a new event into the file (not in the last position)
   - delete the existing event in the file

2. Update the horizontal structure
   - add the new branch to the tree in the file
   - fill this new branch event by event

Is it possible to have branches of the same tree in the separate 
files?

Thanks
Valeri Tyukov.



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