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Re: st: AW: Two weights at the same time?


From   Daniel Goya León <goya00@gmail.com>
To   statalist <statalist@hsphsun2.harvard.edu>
Subject   Re: st: AW: Two weights at the same time?
Date   Tue, 17 Aug 2010 14:03:55 +0100

thanks, but's its not exactly that. I actually made a mistake in my
question, I need to apply two probabilty weights at the same time, not
two analytical weights (and not one analytical and one probability as
the other question)

I think I can simply multiply them, but I'm not sure at all about it


On 17 August 2010 12:13, Martin Weiss <martin.weiss1@gmx.de> wrote:
>
> <>
>
>
>
> Sounds very similar to Jochen`s recent thread at
> http://www.stata.com/statalist/archive/2010-08/msg00121.html
>
>
>
>
> HTH
> Martin
>
> -----Ursprüngliche Nachricht-----
> Von: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Daniel Goya
> León
> Gesendet: Dienstag, 17. August 2010 13:05
> An: statalist
> Betreff: st: Two weights at the same time?
>
> Hello. I think this question might be more pure statistics than
> stata-related, but hopefully you can help me out please.
> I'm currently working with the GSS (1985 and 2004), and have an issue
> with weights (for simple OLS regressions). The 2004 data includes a
> variable that explicitely takes into account two things: subsampling
> of a group due to two-stage stratification, and the number of adults
> in the household.
> My problem is that with the 1985 data I'm working, I also need to
> correct for two things: people in household, and a form randomization
> mistake from that year. But I have two independent weight variables.
> (formwt and adults in 1985 gss). If my understanding is right, I
> should use analytical weights for both. Is there any way to use two
> weights at the same time? Is it valid at all to simply multiply them?
> Am I talking nonsense?
> I hope that you can help me out please, thanks in advance
>
> Daniel
>
> ps:I'm definitely studying some sampling before going into more
> empirical work...
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