Problem with the stacking/scaling(?) histogram output after peak matching

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1

Hi all, I’m trying to match six histogram peaks with a reference histogram (i=2) and try to plot them in the same frame with THStack.
the scaling factor is calculated in this way,

for (int i = 0; i < 6; i++) {
    if (i == 2) { // reference histogram  
      factor[i] = 1;
      continue;
    }
    int maxBin = hist[i]->GetMaximumBin();
    factor[i] = hist[2]->GetBinContent(maxBin) / hist[i]->GetBinContent(maxBin);
    hist[i]->Scale(factor[i]);
  }

this part works well as well as the rest of the plotting routine. However, in the stacked output, only the reference histogram is coming with ‘------’ rest are kind of discrete/point ‘+’ like markers although, in the legend box, it shows a line with a dot for ALL SIX histo. (figure attached for reference). I have tried to vary the bin number etc. but the problem still persists.

Any suggestions to fix this? Thanks!

F7icanodespeakmatched
F7icanodespeakmatched1305×684 13.3 KB

2

When you scale them, their draw style defaults to showing errors. So draw them with the “hist” option to avoid that; e.g. h->Draw("hist").
https://root.cern/doc/master/classTHistPainter.html#HP01a

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