Re: questions on histograms

Rene Brun (Rene.Brun@cern.ch)
Thu, 06 Aug 1998 23:37:51 +0200


>Dear Roottalk,

>I seem to recall that the older HBOOK and PAW allowed one to rebin
>histograms by combining together adjacent bins. Does this facility
>exist in ROOT?

>I also remember that one could use a KS test to determine whether two
>distributions (histograms) where the "same". How do I do this in ROOT?

>- Mike Beddo

Hi Mike,
There are currently no TH1::Rebin function (a la Hbook).
One of the many things on my todo list.
I am planning to reimplement the DrawPanel and FitPanel
using the new GUI classes. Rebin should be part of the
DrawPanel (in addition to the callable function).

The Kolmogorov test (Hbook routine hdiff) is not implemented
in Root. Any volunteer to make the translation?

Rene Brun