Re: [ROOT] how to take bin by bin difference in 2d histo

From: Rene Brun (Rene.Brun@cern.ch)
Date: Wed Apr 21 2004 - 07:16:34 MEST 

Hi Kirti,

TH1 is the base classes for 1, 2 and 3-d histograms.
TH1::Add works also for 2-d and 3-d histograms

Rene Brun

On Tue, 20 Apr 2004, 
Kirti Ranjan wrote:

> hi rooters,
>    I am relatively new user of ROOT and facing a trivial problem. I need 
> to take bin by bin difference of two 2d histograms, but couldn't find 
> any simple function like Add used for 1d histo.
>    Thanks in advance.
> Kirti.
> 
> 
>

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