[S] survival curve differences

Steven Reader (sreader@luna.cas.usf.edu)
Thu, 28 May 1998 05:03:11 -0400


I am interested in testing for survival curve differences between survival
curves estimated using fractional case weights.

The Kaplan-Meier survival curve functions work with fractional case weights
but it seems that the survdiff function doesn't allow for the possibility
of fractional case weights in the contributing survival curves.

Am I correct in my understanding ? .....is this something which should be
possible (for instance, do other packages do this ?) or am I out in left
field on this one ?

Any help/advice would be appreciated

_______________________
Dr. Steven Reader
Assistant Professor
Department of Geography
College of Arts & Sciences
University of South Florida
Tampa, FL. 33620
USA

Tel: 813-974-4943
Fax: 813-974-4808

-----------------------------------------------------------------------
This message was distributed by s-news@wubios.wustl.edu. To unsubscribe
send e-mail to s-news-request@wubios.wustl.edu with the BODY of the
message: unsubscribe s-news