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Re: st: RE: RE: calculating means by group, with weights


From   "Austin Nichols" <austinnichols@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: RE: calculating means by group, with weights
Date   Wed, 25 Jun 2008 13:51:55 -0400

Shehzad Ali and Maarten--
Modulo the caveat that point estimates are the same with [aw] or [pw]
and only SEs differ, and e.g. -tab y x [aw]- is faster than -svy: tab-
and -su [aw]- is faster than -svy:mean-.  Plus, if you want an
estimate of SD you may want to use [aw] with a pweight; see
http://www.stata.com/support/faqs/stat/supweight.html

On Wed, Jun 25, 2008 at 1:06 PM, Maarten buis <maartenbuis@yahoo.co.uk> wrote:
> --- "Shehzad Ali" wrote:
>> I have often seen people using aweights for
>> survey data. Is that wrong?
>
> Yes, this is discussed in the User's Guide, section 20.17.2 and 20.17.3
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