Problem in the number of entries

Hi,

I take the ratio of 2 histograms using the following as pasted below:

This show me Entries:16 in the stat box.

For sure I can count that I have several (100's) entries there.

Any trick or tip !  

TH1F *h1 = new TH1F("h1", "h1", 16, 0, 16);
TH1F *h2 = new TH1F("h2", "h2", 16, 0, 16); 
TH1F *ratio1 = new TH1F("ratio1", "ratio1", 16, 0, 16);

for (int i=1 ; i<=h1->GetNbinsX() ; i++ ) {

    double u = 0;

    for (int j=1 ; j<=h2->GetNbinsX() ; j++ ) {

      u += h2->GetBinContent(j);
}

    double t = h1->GetBinContent(i);

    double e = 0; double Er = 0;

    if (t!=0) {

      e = u/t;
      Er = TMath::Sqrt(e);
   

}

    ratio2->SetBinContent(i, e);
    ratio2->SetBinError(i, (Er));
 }

regards,

---saleem Received on Mon Nov 26 2007 - 17:58:59 CET