/*

  Few simplae histograms I want to know the frequency 
  of each bin.

  h2 bin width are in float which is my case, I want 
  to know the number of entries in each bin

  h4 gives, but the entry is i, which is essentially
  the bin numbers.


*/



void BinTest()
{
  TH1F *h1 = new TH1F("h1","Binning Goodies 1",10,0,10); //
  TH1F *h2 = new TH1F("h2","Binning Goodies 2",10,0,1);  
  TH1F *h3 = new TH1F("h3","Binning Goodies 3",10,0,10);
  TH1F *h4 = new TH1F("h4","Binning Goodies 4",10,0,10);
  
  for (Int_t i = 0; i < 10; i++) {
    for (Int_t j = 0; j < 5; j++) {
      h1->Fill(j+i/4);
      h2->Fill((float)i/11.0,1);
      h3->Fill(i,j+i/4);
      h4->Fill(i,1);
    }
  }

  for (Int_t i = 1; i <= 10; i++){
    
    printf("Bin%2d h1:%6.2f h2:%6.2f h3:%6.2f h4:%6.2f \n",i,
	   h1->GetBinContent(i),h2->GetBinContent(i),
	   h3->GetBinContent(i),h4->GetBinContent(i));
    
  }

  TCanvas *c1 =  new TCanvas("c1","S",10,10,700,600);
  c1->Divide(2,2);
  c1->cd(1); h1->DrawCopy();
  c1->cd(2); h2->DrawCopy();
  c1->cd(3); h3->DrawCopy();
  c1->cd(4); h4->DrawCopy();

}