Re: [ROOT] Different trees - same class

From: Rene Brun (Rene.Brun@cern.ch)
Date: Tue Oct 26 2004 - 15:39:11 MEST


Hi Tomasz,

If you use a recent version of ROOT such as 4.01, TChain::MakeClass
generates the code with the maximum dimensions found in all the Trees of the
TChain. In the previous implementation, the maximum dimension
was based on the first Tree in the chain.

Rene Brun

Tomasz Bold wrote:
> 
> Hi,
>         I have following problem. I generate the class from the TChain and
> see that diferent trees have different class describing them. Difference
> is small ( max array index for the tracks etc. ) So there is no logical
> difference but only the sizes are different a bit.
> 
> What should I do?
> I decided to make a supper TChain from which I generated the class  I
> want to use for analysis.
> 
> Is that correct?
> 
> Regards,
>         Tomasz Bold



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