Re: Independent branches in a TTree

From: Rene Brun <Rene.Brun_at_cern.ch>
Date: Wed, 18 Jun 2008 12:08:43 +0200


I do not understand your remark about tree->Fill ! You can perfectly read only one or subset of branches of your Tree via branch.GetEntry.

Rene Brun

Julien Piot wrote:
> Dear ROOTers,
>
> I have data from raw files that I want to store in TTrees via user
> made classes defining particles (Gammas, alphas, etc...). The events
> are not reconstructed yet, so I need as much independence as possible
> between the branches so I can go through branches in order to find
> coincidences.
>
> The TTree->Fill() function doesn't suit my needs since it will link
> the branches together via the entry number.
>
> Is there a possibility to do this with TTrees or do I need to look for
> another storage format ?
>
> Thanks a lot.
>
> Cordially,
>
> Julien
> ==========================================
> Julien Piot
>
> IPHC/DRS
> bat.27 bureau 216
> 23 rue du Loess
> 67037 Strasbourg
>
> 03.88.10.64.19
>
> julien.piot_at_ires.in2p3.fr
>
> =======================================
>
Received on Wed Jun 18 2008 - 12:09:19 CEST

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