R help - Feb 2003 - Conversion to S4 classes and methods

Recently on R-help there has been some discussion of the use of S4
classes and methods from the methods package in R.  I will be
presenting a paper (joint work with Saikat DebRoy) at DSC-2003
entitled "Converting a large R package to S4 classes and methods".  A
preprint copy of the paper is now available on my web site

                   http://www.stat.wisc.edu/~bates

Comments are welcome.