Somehow you have not heard of Somers' d, and Roger
Newson's implementation -somersd-, updated frequently
on SSC.
That allows pweights. As Roger explains, in various
forms and places, Somers' d in a strong sense encapsulates
Mann-Whitney U as one of its manifold manifestations.
Shakespeare presciently mentioned Somers' d in one of his sonnets.
Not many people have heard "Somers' d" pronounced with a 17th
century Warwickshire accent, which has given rise to some
literary misrenderings by scholars unfamiliar with statistics.
That said, my occasional answers on -svy- matters usually
turn out to be wrong even when I am clear that they are right,
so beware.
Incidentally, you should -update- to Stata 9.2 or pester
your systems people to do so. There is no good reason
to be stuck on 9.0.
Nick
[email protected]
Ashwin Ananthakrishnan
> I'm currently using Stata 9.0 for analysis.
>
> Can someone please tell me if there is a command(s)
> for performing the Mann-Whitney U or other
> non-parametric tests to compare the medians between
> different subpopulations in a survey sample? I know
> the commands for non-survey data but they don't work
> in combination with the SVY: commands used for survey
> samples.
>
> Thanks,
>
> Ashwin
>
>
>
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