On Tue, 15 Dec 2009, Henric (Nilsson) Winell wrote:
On 2009-12-15 09:23, David Duffy wrote:
Have you looked at the kinship package at all? It uses lme, but
analyses age at onset data from families more nicely than lmer can
(see the coxme() function and the vignette/documentation).
Actually, the latest version of the coxme() function now lives in
Terry Therneau's new 'coxme' package.
It no longer depends on 'nlme', but uses its own fitting routines and
sparse matrix representation, and has a lme4-like syntax for the
specification of random effects.
Good to know!
The OP may want to use the kinship package to generate kinship
matrices, and to look at the breast cancer example therein.
Cheers, David Duffy.