[R] output of variance estimate of random effect from a gamma frailty model using Coxph in R
Thomas Lumley
tlumley at u.washington.edu
Thu Jul 21 22:06:30 CEST 2005
On Thu, 21 Jul 2005 ghwei at umich.edu wrote:
> Hi,
>
> I have a question about the output for variance of random effect from a gamma
> frailty model using coxph in R. Is it the vairance of frailties themselves or
> variance of log frailties? Thanks.
>
For a Gamma frailty model it is the variance of the Gamma distribution, so
the variance of the frailties. For Gaussian frailty it will be the log
frailties, though.
-thomas
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