Re: [ROOT] bitted word II

From: Rene Brun (Rene.Brun@cern.ch)
Date: Wed Aug 22 2001 - 14:58:39 MEST


Hi Luiz,

Instead of:
root>h1->Draw("Ncmul","Igen  & 1 << 3")

do

root>h1->Draw("Ncmul","(Igen  & 1 << 3) != 0")

In the first case, the result of the mask operation is taken as a weight.

Rene Brun

Luiz Martins Mundim Filho wrote:
> 
> The  problem is even worst. See the  the plots attached, produced with
> the commands
> 
> root>TChain chain("h1")
> root>chain.Add("$SCRATCH_WEEK/*.root")
> root> TCanvs ...
> root> h1->Draw("Ncmul")
> root>c->cd(2)
> root>h1->Draw("Ncmul","Igen  & 1 << 3")
> 
> I took off some commands...  See the scales of both plots, they  are wrong.
> 
> Some  idea?
> 
> Thanks.
> Luiz
> 
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> 
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