[R] Question on gee library

[John Fox]

Dear Jun,

At 11:38 PM 9/29/2002 +0900, Jun Takeda wrote:

>I understand the method generalized estimating equation
>only accept missing values as Missing Completely At Random  (MCAR).
>I would like to know more about the gee function in the gee library.
>
>Does the function gee in gee library accept NA?
>How does the function gee treat NA?

Statistical modeling functions in R, including gee, take a na.action 
argument that determines the way that they handle missing data. From the 
help for gee:

         na.action a function to filter missing data. For gee only na.omit 
should be used here.

na.omit, as the name implies, omits observations with any missing data, 
producing a complete-case analysis.

I hope that this helps,
  John

-----------------------------------------------------
John Fox
Department of Sociology
McMaster University
Hamilton, Ontario, Canada L8S 4M4
email: jfox at mcmaster.ca
phone: 905-525-9140x23604
web: www.socsci.mcmaster.ca/jfox
-----------------------------------------------------

-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-help-request at stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._