Re: ProjectionX

From: Georg Troska <georg.troska_at_uni-dortmund.de>
Date: Fri, 23 Sep 2011 15:02:49 +0200

Hi,

"Hist" works - very nice, thank you

I just found out, that bin errors were calculated in the TH2, which do not occur in the TH2, but in the projection.

Thank you very much
Georg
Am 23.09.2011 um 14:59 schrieb Rene Brun:

> if you have called TH2::Sumw2 on your TH2 histogram, then the projection is also created with the correct computation of the errors and the errors are displayed by default.
> 
> Rene
> 
> 
> On 23/09/2011 14:33, Georg Troska wrote:

>> Hi,
>>
>> I'm wondering why the TH1D* from TH2::ProjectionX is sometimes forced to be drawn in the error-bar option.
>> I was not able to find out where this comes from. When I read in a histogram from a root-file the projection is sometimes error-bar only
>>
>> Any hint?
>>
>> Georg
>>

> Received on Fri Sep 23 2011 - 15:02:56 CEST