Thanks a lot Nick.
I think I am going to use the generate command and
calculate the zscore.
Thanks again
Anju
--- Nick Cox <[email protected]> wrote:
> No, I wasn't referring or alluding to
> this FAQ, but it clearly points you
> in the right direction.
>
> Suppose for example you
>
> . use http://www.stata-press.com/data/r8/nmihs.dta
>
> . svymean age
>
> Survey mean estimation
>
> pweight: finwgt
> Number of obs = 9953
> Strata: stratan
> Number of strata = 6
> PSU: <observations>
> Number of PSUs = 9953
>
> Population size = 3898922
>
>
------------------------------------------------------------------------------
> Mean | Estimate Std. Err. [95% Conf.
> Interval] Deff
>
---------+--------------------------------------------------------------------
> age | 26.28999 .0775855 26.1379
> 26.44207 1.920533
>
------------------------------------------------------------------------------
>
> It would seem that you can then knit your own
> standardized score by
>
> . gen stdage = (age - _b[age]) / (
> _se[age]*sqrt($S_E_nobs/S_E_deff[1,1]))
>
> However, on -svy-, never believe an answer unless
> experts on -svy- agree.
>
> Nick
> [email protected]
>
> anju parthan
>
> > Thanks. I am not sure I understood your comment.
> >
> > Are you referring to the explanation given by
> William
> > Sribney in the following link
> >
> >
>
http://www.stata.com/support/faqs/stat/supweight.html
>
>
> > --- Nick Cox <[email protected]> wrote:
> >
> > > Neither -zscore- nor -center- supports
> > > pweights.
> > >
> > > This seems to be the first mention in this
> > > thread of survey data. Is the concept of
> > > standard deviation well defined for survey
> > > data? If not, the whole idea of a standardized
> > > variable would appear not defined in turn.
> > >
>
> *
> * 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/
>
=====
____________________________________________________________
Anju Parthan,
Doctoral Candidate,
The University of Texas at Austin, PHAR-PHARMACY ADMIN
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*
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