Rebinning data in a multigraph

[yus]

@faca87

If I create a histogram using gethistogram, how to keep the correspondence on the y-axis? (i.e. do not alternate the flux values)?

Sorry, the TGraph::GetHistogram() won’t work here. It is always empty as explained at TGraph GetHistogram() - #2 by couet. You should try to create a histogram from your multigraph yourself.