Bob -
see if you are interested in the plain S-Plus implementation of
ptnoncent.ssc
on the web page of our book (chapter 11, Bock on power and sample size
calculations):
http://www.elmo.ch/doc/statistics-in-pharma/code/index.html
Best regards,
Andreas
To: s-news@lists.biostat.wustl.edu,
r-help@stat.math.ethz.ch
Subject: responses to my question on non-central t
The original question is attached at the end of this message ...
In the world of R the excellent mvtnorm package answers my original
question and many more that I didn't know I needed to ask.
In the world of Splus ( version 6 , Windows XP ) this link :-
http://www.biostat.wustl.edu/archives/html/s-news/2002-11/msg00079.html
which was provided by Dimitris Rizopoulos, is useful.
Sadly in Splus there seems to be no library equivalent to the R mvtnorm
package...
... unless someone out there has ported it, or has something similar up
their sleeve ??
cheers Bob
|