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Re: st: RE: about the return list of -codebook-


From   "Sergiy Radyakin" <serjradyakin@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: about the return list of -codebook-
Date   Thu, 30 Aug 2007 19:21:09 -0400

Alternatively one can find -CntUniq- inside codebook.ado, cut it and
paste into CntUniq.ado. It requires 2 arguments, variable of interest
and a touse marker 0/1.

sysuse auto
gen marker=weight>4000
CntUniq weight marker
return list
codebook weight

To understand, which result means what, compare with the results from -codebook-

Best regards, Sergiy


On 8/30/07, Nick Cox <n.j.cox@durham.ac.uk> wrote:
> If it did this, it would be (a) documented
> and (b) evident from -return list- after
> applying the command.
>
> -codebook- is an r-class command, but the r-class
> results issued are restricted to problem reports.
>
> More positively, when you say "unique" values
> I take it that you mean "distinct". Either way,
>
> . search unique, faq
>
> points to various ways of finding this out,
> including dedicated programs. One that sticks
> in my mind somehow is -distinct- from SSC by
> Gary Longton and another. Also you could
> do something like
>
> . levelsof mpg, local(levels)
>
> . di `: word count `levels''
>
> Nick
> n.j.cox@durham.ac.uk
>
> Luhang Wang
>
> > Does anyone know whether Stata stores the number of unique values
> > after command -codebook- in any built in macro, just like r(mean) for
> > mean after -sum-?
>
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