Changing the scale of a histogram

Hi everyone,

Is there someway to change the scale of an already existing histogram by some constant multiplicative factor? In my case I had a histogram with a log X scale in GeV, and I wanted to change it to a log X scale in TeV. I have a feeling this is something very trivial but I couldn't figure it out and ended up replotting the histogram all over again.

Anyone has any suggestions I can try next time?

-- 
Suvayu

Open source is the future. It sets us free.