Variable Bins

Newbie
1

I am new to root,
I have used a variable bins in my histogram but instead the bins it shifted my histogram to right.
‘’’
const Int_t NBINS = 42;
Double_t edges[NBINS + 1] =.
{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,10,10,10,10,10,10,10,25,25,25,25,25,25};

TH1D* hist = new TH1D("hist", "",NBINS, 6, 250);

‘’’

2

The bin edges should be: {0., 1., 2., 3., ..., 200., 225., 250.}
Then: TH1D("hist", "", NBINS, edges)

3

It didn’t help constructed the variable bins.

4 
{
  Double_t edges[] = {0., 1., 2., 3., 10., 20., 30., 200., 225., 250.};
  const Int_t NBINS = sizeof(edges) / sizeof(Double_t) - 1;
  TH1D *hist = new TH1D("hist", "", NBINS, edges);
  hist->FillRandom("pol0", 1000);
  hist->Draw();
}
5

It helped construct the variable bin size but still shift the histogram to left.

Thank You.
CurrentAnalysis.C (2.1 KB)

6

We do not have your data file to run your macro.

8

The file is larger than 3MB so could not upload it.