Re: [ROOT] How to know whether a histogram has ZERO entries?

From: Jyothsna Rani (jyothsna@fnal.gov)
Date: Tue Jul 16 2002 - 05:33:31 MEST 

Would like to get the output inside root session?

Something like this:

root[]jet*->GetEntries();
      jet1   100
      jet2   300
	........
      jet10  0

Yep..each histogram has different number of entries.

This option would help in determining the histograms/ntuple variables with
zero entries. 

Thanks in advance,
Jyothsna

On Mon, 15 Jul 2002, Rene Brun wrote:

> Could you precise your question?  Where do you want to get the output?
> in an array? I assume that your histograms have each a different
> number of entries.
> 
> Rene Brun
> 
> On Sun, 14 Jul 2002, Jyothsna Rani wrote:
> 
> > 
> > I would like to know whether I can get the entries for all the histograms
> > with only ONE command.
> > 
> > Let jet1, jet2 .....jet10 be 10 histograms.
> > Is it possible to get the entries for all of them with only one command,
> > viz, jet*->GetEntries() (using some wild card)???
> > 
> > Thanks,
> > Jyothsna
> >

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