[R] problem with survexp in survival5
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.
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