Re: [ROOT] how to get entries

From: Piyali Banerjee (piyali@fnal.gov)
Date: Sun Oct 03 2004 - 18:46:22 MEST


Hi,
	Yes both GetSumOfWeights() and Integral worked.

Thanks,
Piyali

On Sun, 3 Oct 2004 Tomasz.Bold@cern.ch wrote:

> Hi,
> 	Not beeing an expert but having look at code: if you fill calling
> method someh.Fill( x, weight)
> then getEntries returns exactly how many Fill calls you did.
> 
> One comment; also under/over-flows are counted in.
> 
> If you need sum of Weights rather than above
> someh.GetSumOfWeights() or Integral
> 
> 
> Hope helps a bit,
> 	Tomasz Bold
> 
> 
> On Sun, 3 Oct 2004, Piyali Banerjee wrote:
> 
> >
> 
> > Hi,
> > 	Is there any method for the TH1F class which will give the
> > total number of entries in a weighted histogram.
> > I know about GetEntries() but it does not give the correct number for the
> > weighted histogram.
> >
> > Thanks for nay help.
> > Piyali
> >
> >
> 



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