[R] How to perform a stepwise selection of the best models for gee?

[Jinn-Yuh Guh]

Hi,
How to perform a stepwise selection of the best models for gee?
Why can't step() do this job?
Thanks.

Sincerely Yours,
Jinn-Yuh Guh, M.D.
Dept. of Internal Medicine
Kaohsiung Medical College
100 Shi-Chuan 1st Road
Kaohsiung, Taiwan
FAX: 886-7-312-2810
e-mail: jyuh at mail.nsysu.edu.tw

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