[R] Generalized Estimating Equations and log-likelihood calculation
henric.nilsson at statisticon.se
Thu Feb 19 09:17:37 CET 2004
At 18:29 2004-02-18, you wrote:
>Is anyone aware of a way to calculate log-likelihood for GEE models?
No. GEE fitting is based on quasi-likelihood.
However, it is possible to derive AIC-like measures based on the
quasi-likelihood. Lebreton et al (1992) suggested a simple adjustment in
the GLM case, i.e. when using family=quasibinomal or quasipoisson. For GEE
models, Pan (2001) has introduced QIC. None of these measures are
implemented in R or in any add-on package as far as I know.
More information about the R-help