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7eff2000
2002 Jul 16
2
scale parameter and parameter vac-cov matrix in GEE
Dear all,
It looks like the parameters var-cov matrix returned by gee() is not
adjusted for the scale parameter:
> fm1 <- gee(nbtrp ~ strate * saison + offset(log(surf)), family = poisson, data = Eff2001,
+ id = loc, tol = 1e-10, corstr = "exchangeable")
[1] "Beginning Cgee S-function, @(#) geeformula.q 4.13 98/01/27"
[1] "running glm to get initial regression estimate"
[1] -0.7755188 -1.5240927 0.4769241 0.4682660 0.1776812
[6] 0.1219127 0.6949677 -1....