you can see a point with a large error, which pretty much disguise the true graph’s shape due to rescaling of the y axis, and I would like to remove that point, and points with similar y-error.
On the same note, can I do that with relative error as well?
I don’t think the functionality you’re looking for exists. You could try to use your original histogram to obtain a rebinned one with larger bin sizes towards the high end of the x axis - that way your bin-by-bin fluctuations will ikely go down, and you might get a decent plot. It will need a bit of work with GetBinContent and GetBinError in a for-loop, though…