[R] problem with survexp in survival5

Chong Gu chong at stat.purdue.edu
Wed Apr 5 16:52:07 CEST 2000

Thanks to Robert Gentleman and Professor Ripley for the pointer to
library(date).  It works now.

One more question: are R and Splus using the same ratetable?  If not,
which seems to be the case, which one is more "accurate"?

When I tried the following in Splus 3.4 for AIX 3.2.5 and Splus 5.1
for AIX 4.3.1, I got different results.


On R, upon replacing julian by mdy.date, I got yet a third answer.

julian(6,1,1991) in both Splus versions, as well as
as.numeric(mdy.date(6,1,1991)) in R, gave the same 11474.

Chong Gu
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