TH1F with "same" option - visualization problem

ROOT
1

Hello,

I have some trouble in removing the red bar appearing at the lower edge of the first bin of the histogram in attachment. Even if I reduce the range, it seems to set to zero the bins which are not visualized, so the left bar stays. Note that the red histogram has been superimposed to the blue one with the “same” option.

Could you suggest me some trick to remove the red bar?
Thanks,
Anna
67Aslevels_draft.eps (9.09 KB)

2

Try to add “][” to your histograms’ drawing options.

3

What you call the “red bar” is simply the edge of the fist bin of your histogram plotted as a bar chart.
the ][ option is a solution you can also try the C or L options.