This package is based on R codes 
either written by Mai Zhou or ported to R by Mai Zhou. 
(mai@ms.uky.edu)
The code  aft.fun.R is ported from Splus code by Jin Zhezhen. 

Everything is written in R, so porting to Splus should be
easy. 

Release History: 
Version 0.1   Jan-Feb. 2005
