ROOT Version: 6.26/02 Platform: Windows Compiler: MSVC 19.31.31104.0
Hi,
I’ve seen on https://root.cern.ch/root/htmldoc/guides/users-guide/Histograms.html` When a histogram has errors, it is visualized by default with error bars.` what does this mean? Do I have to add errors manually e.g. when writing a tree? What is the difference to use the statistics box?
Is it possible to display e.g the mean error as a percentage of the mean instead of a raw value? Guess it would be a relative error then(?).
Btw, I’m using gStyle->SetOptStat("eMR"); which can be found under 5.8.5 Statistics Display on Chapter: Histograms