Re: [ROOT] Temporary histogram names

From: Rene Brun (Rene.Brun@cern.ch)
Date: Tue May 02 2000 - 10:07:35 MEST


Hi Stephen,
You can remove an histogram from the list of objects
supported by the current directory via h->SetDirectory(0).
In the version 2.24/03, I have added a static function to TH1
  static void TH1::AddDirectory(Bool_t add=kTRUE)
if you do TH1::AddDirectory(0), from this point, histograms
will not be automatically added to the current directory.

Rene Brun

On Mon, 1 May 2000, Stephen Bailey wrote:

> 
> Hi.
> 
> I sometimes use temporary histograms within a function
> to simplify some calculation.  Since each histogram
> apparently has to have a unique name, I sometimes end
> up stepping on some histogram name that I had used
> elsewhere, either blowing it away or getting an error
> about different histogram types of the same name being
> used.  Is there a simple way around this problem?
> 
> Thanks.
> 
> Stephen
> 
> 



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