Multiple error bards with different size

[jfcaron]

Ah, I thought you meant you just needed different error values on your data points (which is obviously done with the TGraphAsymmErrors itself). You wish to have error bars on superimposed graphs with different sizes of the little lines on the ends of the error bars?

A simple google search turned up this workaround, but I can’t offer any other help in this context.

Error bars with two different sizes of end marker

SetEndErrorSize is a global setting you change via gStyle. Therefore when you change it, it apply on all histograms. One way to bypass this you can use the TExec facility: gStyle->SetEndErrorSize(...); h1->Draw(); TExec ex("ex","gStyle->SetEndErrorSize(...);"); ex.Draw(); h2->Draw();