how to retrieve robust se in coxph
Thomas Lumley wrote:
On Thu, 16 Feb 2006, ronggui wrote:
see robcov in Design package.
No, don't. This is not the same thing at all.
-thomas
Thomas - it is the same thing. -Frank
2006/2/16, Lei Liu <ll9f at cms.mail.virginia.edu>:
Hi, I am using coxph in simulations and I want to store the "robust se" (or "se2" in frailty models) for each replicate. Is there a function to retrieve it, like vcov() for the variance estimate? Thanks! Lei Liu Assistant Professor Division of Biostatistics and Epidemiology Dept. of Public Health Sciences School of Medicine University of Virginia 3181 Hospital West Complex Charlottesville, VA 22908-0717 1-434-982-3364 (o) 1-434-806-8086 (c) liulei at virginia.edu ll9f at virginia.edu
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