Eva--
I will assume you do in fact have a pweight on your data. While it is
quite true that "use of pweights generally requires prior use of
-svyset- and then -svy- commands" as Nick points out, note that
specifying pweights as aweights produces identical point estimates, so
*as long as you are not computing the variance* of estimates, for
example to test whether proportions are equal or to compute confidence
intervals, just:
tab x y [aw=weight]
and you can see the two weight types side by side by trying:
reg x y [aw=weight]
reg x y [pw=weight]
where only the Std.Errors and related quantities should differ.
On 3/19/07, n j cox <[email protected]> wrote:
It is not clear to me that your situation is one leading
to the use of pweights.
Either way, -tabulate- does not support pweights. That
is implied in the help, which explains that only the
other kinds of weight are supported.
Use of pweights generally requires prior use of -svyset-
and then -svy- commands.
Nick
[email protected]
Eva Gottschalk <[email protected]>
I'm using data that is weighted for the overpresentation of east-germany
(weighting variable=weight).
For the regression I just add [pweight=dweight] to weight my data.
This command does not work with: tab x y [pweight=weight]
I don't understand why, because it seams quite important to wheight the
data for descriptions about germany as a whole.
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
