Re: IList and OList

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Hi Jack,

You can use the OList to automatically create a TEventList corresponding
to the current selection.
You can then use this TEventList as a filter (in Ilist)
A TEventList is just an object containing a list of event numbers.
  see http://root.cern.ch/root/html/TEventList.html

Note that the newly released 2.23/11 has several improvements in the
TreeViewer.

Rene Brun

Jack Cranshaw wrote:
> 
> Hi Root Folk,
> 
> I was checking out the new TreeViewer in root
> v2_23_09 which has several features and bug fixes
> which I was looking for, so I'm mostly a happy camper/rooter.
> 
> I have a question, though, on how to use the IList and
> OList boxes. If I understand correctly, these are filters
> on what is presented from the TTree. We're using a
> root gui where we load calibrations into a TTree, do
> some analysis, and then we may want to write a list of
> bad channels. Can these List variables be useful for
> that or do I misunderstand the purpose?
> 
> Thanks,
> 
> Jack
> cranshaw@fnal.gov

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