Hi,

Root allows you to simply change between a linear and a log scale for

the y-axis when you plot a histogram. However, I’m interested in using

a sqrt scale. (This has the advantage that the errors on all points will

have the same size.)

I looked around and found some mention about this in a fairly old post:

root.cern.ch/root/roottalk/roottalk00/0032.html

I looked at the TGaxis object and I guess one could use these axis objects

to piece together a sqrt scale that displays numbers of events such as

0, 1, 10, 100 etc. But then one has to manually create a histogram where

one has taken the sqrt of the data.

If someone has a simple way, or an example, that does this it would be

useful.

Thanks,

Anders