Hi..
TFile *ntfile = new TFile("your file","READ");
TTree *si_adc = (TTree*)ntfile->Get("si_adc");
Float_t inx;
si_adc->SetBranchAddress("inx",&inx);
Int_t nentries = si_adc->GetEntries();
Int_t nbytes = 0;
for (Int_t i = 0;i<nentries;i++) {
nbytes = si_adc->GetEntry(i);
// This is your space //
}
bye.
NYKim
On Thu, 30 Dec 1999, Jayoung Wu wrote:
> Hi,
>
> I created a ntuple, for example
> TNtuple *si_adc = new TNtuple("si_adc","SIADC","inx:iny:lay:lad:pat:pix:a0");
> And I filled the ntuple.
>
> Later I want to access that ntuple by
> TNtuple *si_adc = (TNtuple *)ntfile->Get("si_adc");
>
> Then what should I do to access to indivisual variable, for example,
> inx, iny , a0. ... ?
> Should I do something like si_adc->inx->SetAddress(&inx)?
>
> ---
> Thanks,
> Jayoung
>
>
>
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