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From |
"Nick Cox" <[email protected]> |

To |
<[email protected]> |

Subject |
RE: st: RE: Standarized Zscore |

Date |
Fri, 28 Jan 2005 19:33:57 -0000 |

You have not yet heard one -svy- expert agree with my guess! (Like Scott, I don't use survey data.) Nick [email protected] anju parthan > Thanks a lot Nick. > > I think I am going to use the generate command and > calculate the zscore. Nick Cox > > > 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/

**Follow-Ups**:**RE: st: RE: Standarized Zscore***From:*anju parthan <[email protected]>

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