Upper-tail probability of Chi-Squared Distribution
Urs Langenegger (ursl@SLAC.stanford.edu)
Wed, 09 Sep 1998 20:30:24 -0700 (PDT)
I have a small function calculating for some data a chi^2 with some
degrees of freedom. I am interested in the confidence level. I tried
to find the equivalent of the CERNLIB function PROB in the ROOT source
code, but I didn't find it. I searched the website, without success.
Is there a way to get the CL without having to build my own root
executable (such that I can access PROB) or do the integration myself?
Any hint would be appreciated,
--U.