[ROOT] TChain usage

From: Tohru Ohnuki (ohnuki@physics.ucla.edu)
Date: Wed Oct 30 2002 - 12:05:49 MET


Hello fellow root users, i have a question regarding adding files to a
TChain. If the file doesn't have the tree you are trying to add it barfs
with: Error in <TChain::LoadTree>: cannot find tree with name... Now the
chain seems broken, for instance GetEntries returns
1.23456789000000000e+09. My question: Is there a way to back up and
unchain the last file or do i need to start over adding to the chain? Or
is there a way to test for proper file chaining? Or should i ensure that
all files are homogeneous? Thanks...

Regards

Tohru O.

--
UCLA Physics and Astronomy Department
GSR-IV Data Monkey
ohnuki@physics.ucla.edu



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