Hi Rene,
hmmm... , why? I mean it is good to know it's not implemented but in genaral
I believe it would be useful to have. For example I want to keep fTrack.fdE
or fTrack->GetdE() facility for advanced use inside programs/macros, but for
an "ordinary" user it would be nice to simplify things to
TTree::Draw("dE:E");
instead of current
TTree::Draw("fTrack.fdE:fTrack.fE");
The latter is confusing for a number of people who know Paw only ...
/Anton
-----Original Message-----
From: owner-roottalk@pcroot.cern.ch
[mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of Rene Brun
Sent: Wednesday, March 15, 2000 8:18 AM
To: Anton Fokin
Cc: roottalk
Subject: Re: Changing branch name ...
Hi Anton,
Currently, you cannot and should not change the name of a branch in a
tree.
SetName should be redefined in TBranch and derivatives.
Rene Brun
Anton Fokin wrote:
>
> Hi rooters,
>
> is it possible to change name of a branch in a tree? I have tryed (before
> writing tree with split level 1 from Event example)
>
> TBranch* Branch = Tree->GetBranch("fNTrack");
> Branch->SetName("Hello");
>
> It doesn't crash and "Hello" branch is acceptable from a root session, but
> Event->GetNTrack() starts to return zero every time I read an event in my
> compiled program.
>
> Is there any trick/recommendations about changing branch names?
>
> Best,
> Anton
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