I am having difficulty thinking that you cannot find general material
by doing a Google search, but can tell you from memory that the US
National Center for Health Statistics publishes on the WWW quite a bit
of information about their survey methods.
For an R-centric answer: Have you looked at the survey package that
Lumley created?
Doing help.search("sampling") I also see that wtd.mean is available
in Harrell's Hmisc. The help page for that function also has useful
links.
--
David Winsemius
On Nov 24, 2008, at 3:34 PM, Robert Wilkins wrote:
Hi,
Where can I find information ( freely available on the Internet ,
and also
books or other sources ) on how having sampling weights changes the
calculation of the standard error (of means and proportions)?
How good is R for this type of procedure? And SAS?
thanks
Robert
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