[R] standard errors of fitted values are different S-plus survival pa ckage and R

Georgina.Bermann@astrazeneca.com Georgina.Bermann at astrazeneca.com
Mon Apr 2 12:29:05 CEST 2001


Perhaps this question has been asked before: but using the function predict(
fit,type="terms",se.fit=T), where fit is a coxph object in S-plus, the
estimated standard errors are different.  It may be different estimators of
the variance of the residuals?  Which one is the default in R, I don't find
that too easily in the documentation.  Does anybody know?

I'll be very grateful if somebody can help in this matter.

Georgina Bermann
Biostatistics, AstraZeneca R&D Mölndal
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