Hi Andres,
When using TTree::Draw, you can specify a selection.
I suggest you read:
-the example at $ROOTSYS/tutorials/ntuple1.C
http://root.cern.ch/root/html/examples/ntuple1.C.html
-the documentation of TTree::Draw
http://root.cern.ch/root/html/src/TTree.cxx.html#TTree:Draw
Rene Brun
Andres Felipe Osorio Oliveros wrote:
>
> Dear ROOTers,
>
> I want to analyze some data obtained from the Isajet simulator using Root.
> For this reason I created an intermediate hbook file - a RW-Ntuple- and
> then I use h2root to convert this file. I have been able to plot in the
> easy way using something like 'h10->Draw("px");'. But I need to do a more
> precise analysis for example reading the content of each row at specified
> column and selecting data. After reading the tutorials and several pages of
> class description I still don't know what to do.
>
> Thank you for any assistance you can provide.
> ( I'm a root novice.)
>
> Andres Felipe Osorio
This archive was generated by hypermail 2b29 : Tue Jan 02 2001 - 11:50:35 MET