Re: [ROOT] Can a branch of a tree be a ntuple?

From: Rene Brun (Rene.Brun@cern.ch)
Date: Thu Jan 18 2001 - 19:27:05 MET


Hi Jayoung,

A branch of a TTree can in principle be any TObject. But it must be
an object in memory. If your ntuple fits in memory, a TTree branch
may be a pointer to this TTree (use non-split mode). 
I do not understand the problem you want to solve with this idea.


Rene Brun

Jayoung Wu wrote:
> 
> Hi Rooters,
> 
> Can a branch of a tree be a ntuple?
> 
> For example,
> TTree *tree = new TTree("EVENT","Event Tree");
> TNtuple *header = new TNtuple("header","EVENT HEADER","evtno:time:type);
> 
> How can I define header as a Branch?
> TBranch *branch1 = tree->Branch("Header",...);
> 
> ---
> Thanks a lot !
> Jayoung



This archive was generated by hypermail 2b29 : Tue Jan 01 2002 - 17:50:33 MET