Re: [ROOT] Chain and MakeClass Problem

From: Rene Brun (Rene.Brun@cern.ch)
Date: Tue Mar 04 2003 - 10:15:54 MET


Hi Dan,

I cannot test your system because your external shared lib cannot run on 
my systems. However, I suggest you move to one of the pro versions 
3.03/09, 3.04/02 or the latest version 3.05/02. Problems in some 
conditions when moving to a new file in a TChain were fixed in these 
versions.

Rene Brun

On 3 Mar 2003, Dan Krop wrote:

> Hello,
> 	I'm seeing some unexpected behavior when using the MakeClass method on
> a TChain.  I'm using RH 7.3.  One of the files in the chain was created
> with version 3.03/04 and the other with 3.03/07.  When I chain them
> together on the machine with 3.03/04, do a MakeClass, and then run the
> analysis loop, it seems to not find the correct entries in the tree when
> it gets to the 2nd file- it gives random numbers for branch entries in
> those events.  Since the ntuples are rather large and there is a
> necessary supporting library, I've created a web page with links to
> download all the files needed to reproduce this problem.  The page is
> at:
> 
> http://dustbunny.physics.indiana.edu/~dkrop/root_problems
> 
> Note that when each file is analyzed separately, i.e. not in a TChain,
> no problems are found.
> 
> 				Thanks in advance,
> 						Dan
> 



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