Re: Re: [ROOT] subtacting histograms, errrors

From: Rene Brun (Rene.Brun@cern.ch)
Date: Tue Jul 30 2002 - 23:54:47 MEST


Hi Dmitri,

Several reasons:
 - once errors are computed, error bars are drawn with the histogram.
   Most people do not want to see the errors

 - There are many applications dividing thousands of histograms.
   Space used by errors may be substantial in this case.

 - We assume that if somebody is interested by correct errors,
   he will make sure that the input errors are correct.

Rene Brun  





On Mon, 29 Jul 2002, Dmitri Litvintsev wrote:

> 
> Hello Rene,
> 
> I see, so I missed the documentation.
> 
> But why is not the correct calculation of errors a default?
> 
> regards,
> Dmitri Litvintsev
> 
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