Re: [ROOT] Question concerning AddFriend() member function and subdirectories

From: Rene Brun (Rene.Brun@cern.ch)
Date: Thu Jun 07 2001 - 08:29:41 MEST


Hi Malcom,

Friend Trees in Root subdirectories are not supported by the current
interface. I will implement this after the release.

Rene Brun

Malcolm Davidson wrote:
> 
> Hello,
> 
> I've been using the AddFriend() feature extensively recently and found it
> very useful. The feature works fine for trees located in the main directory
> of a file. The problem I have concerns adding friend trees from
> subdirectories e.g.
> 
> TTree *t=new TTree();
> t->SetName("mparam_tree");
> t->AddFriend("v25 = valid_inc25","IEM.root:/IEM_rnd");
> t->AddFriend("v45 = valid_inc45","IEM.root:/IEM_rnd");
> 
> for trees "valid_inc25" and "valid_inc45" in ROOT file "IEM.root" and
> subdirectory "IEM.rnd".
> I've tried all variants for the file description, with or without : or /
> etc....
> 
> Is there something I'm doing wrong or has this feature not been added yet ?
> 
> Regards
> 
> Malcolm
> 
> <>------------------------------------------------<>
> Malcolm W. J. Davidson
> CESBIO - UMR 5639 CNES-CNRS-UPS
> 18 Avenue Edouard Belin
> BP 2801
> F-31401 Toulouse Cedex 4  France
> e-mail : davidson@cesbio.cnes.fr
> phone (33)(0)5.61.55.85.84
> fax   (33)(0)5.61.55.85.00
> <>------------------------------------------------<>



This archive was generated by hypermail 2b29 : Tue Jan 01 2002 - 17:50:48 MET