Hi Sergey,
thank you very much for your help! I attach here the ROOT file and the macro which draws and saves the 2D TEfficiency object.
Another thing I notice is that when saving the efficiency on a root file and then reopen it, the labels will be gone and the axis range will be reset. I think this is a know issue since I found this topic about it TEfficiency, x-axis text labels and scales not persistent
When we draw with JSRoot the 1D TEfficiency as a matter of fact we loose the axis labels…
Regards,
Francesca
macroTEfficiency.cxx (752 Bytes)
output2DTEfficiency.root (4.9 KB)