I was going to write that you could download -gsample- from
the SSC archive and then type
. gsample 10, percent wor cluster(lpnr)
but then I detected that -percent- cannot be used together
with the -cluster()- option. I fixed the bug but you will have
to wait until the package has been updated on SSC. Meanwhile,
a workaround would be
. duplicates report lpnr
. local n = round(r(unique_value) * 0.1)
. gsample `n', wor cluster(lpnr)
[-wor- causes sampling without replacement.]
ben
> -----Original Message-----
> From: [email protected] [mailto:owner-
> [email protected]] On Behalf Of Christer Thrane
> Sent: Wednesday, May 10, 2006 7:43 PM
> To: [email protected]
> Subject: st: Getting a random sample from panel data
>
> Hi,
>
> In my panel data (one observation per year), the variable lpnr
identifies
> persons and the variable aar identifies panels.
>
> I wish to obtain a 10% probability sample that is representative in
terms
> of
> persons (lpnr). But if the person is selected, I want to follow him or
her
> throughout the panels (aar).
>
> Findit "random sample" did not help me, though.
>
> Any help is appriciated.
>
> Best regards,
>
> Christer Thrane
> Lillehammer University College
> Norway
>
>
> *
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*
* For searches and help try:
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