Splus code for kappa statistic with multiple raters and categorical data

["Wen Ruan" <wen@textwise.com>]

Dear All,
I have checked the archive and haven't found any splus code for using
kappa statistic to evaluate agreement among multiple raters with
categorical data (I did find some code for pairwise evaluation).  Has
anyone done similar work and kindly point me to any resource?  

Thanks!

Wen Ruan, Ph.D.
TextWise Labs. 
Syracuse, NY.