Hi Jason,
On Wed, 14 May 2003, jrieger wrote:
> Greetings,
>
> I have generated an array of TH1F that I now want to write out to a root
> file. However, I am having difficulty getting this to work. Is it
> possible? A portion of the code that I used to make this histogram is:
just put in front:
TFile * outf = new TFile("xxxx.root", "RECREATE");
// all new hist will be added to directory of xxxx.root
>
> TH1F *myhist[1000];
> char *histname = new char[10];
> sprintf(histname, "h_x_%d",xx);
> myhist[xx]=new TH1F(histname,"",100,-0.25,0.25);
> for (Int_t iii=0;iii<nentries; iii++) {
> Double_t binx=h_x->GetBinContent(iii);
> myhist[xx]->SetBinContent(iii,binx);
> }
// and at the end:
outf->Write(); // all objects in dir of outf (xxxx.root)
// are written
Cheers
Otto
--
Otto Schaile Sektion Physik, LMU Muenchen
Phone: +49 89 289 14070 Am Coulombwall 1, D-85748 Garching, Germany
GSM: +49 160 1553598
FAX: +49 89 289 14072 EMail: Otto.Schaile@Physik.Uni-Muenchen.DE
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