In the root documentation for TH1::Scale() at:
it gives the declaration as:
void Scale(Double_t c1 = 1, Option_t* option = “”)
and says: If option contains “width” the bin contents and errors are divided
by the bin width.
However, in ROOT 5.18.00a:
I see only:
void Scale(Double_t c1 = 1)
Was the second argument removed at some point? It would be very useful.