TH1::GetNormFactor() what's for?

Dear ROOTers,

      In these days I'm playing with normalized histograms and I was surprised by the behavior of GetNormFactor. The documentation is not very useful (sigh!) and I don't understand what is for. I though it was returning the value used to scale the bin contents, but I can't get any numbers different from 0.

Attached an example.

Thanks for the clarification!

Antonio

-- 
Antonio Bulgheroni, PhD

Computers have a lot in common with air conditioners:
Once you open WINDOWS, they stop working properly.







text/x-c++src attachment: test.C