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Re: st: RE: Getting at value labels


From   "Steichen" <steichen@triad.rr.com>
To   <statalist@hsphsun2.harvard.edu>
Subject   Re: st: RE: Getting at value labels
Date   Sun, 15 Feb 2004 12:18:21 -0500

Nick Cox,

I sent a few messages directly to you that you have not replied to; perhaps
your ISP is blocking my address for some reason, thus I'm using this public
forum to try to reach you (everyone else, please forgive me, this will be
the only one).  Drop me a note if you receive this and I'll attempt to mail
to you directly... if that fails, I'll try via my Yahoo address.

Tom Steichen
steichen@triad.rr.com


----- Original Message ----- 
From: "Nick Cox" <n.j.cox@durham.ac.uk>
To: <statalist@hsphsun2.harvard.edu>
Sent: Sunday, February 15, 2004 12:07 PM
Subject: RE: st: RE: Getting at value labels


> Roger Harbord
>
> > I wrote the short ado-file below a while back, prompted by a
> > colleague's
> > request for help in overlaying twoway plots for several
> > groups on the same
> > axes and using the value labels in the legend.   It seems
> > from this thread
> > that other people have encountered the same issues.
>
> Should be useful for many. Note that it will fail if -over()-
> names a string variable.
>
> > (In case anyone wonders, i avoided using -separate- in the code below
> > because of difficulties ensuring the variables it creates are
> > temporary.)
>
> tempname temp
> separate myvar, by(whatever) gen(`temp')
> local sepvars "`r(varlist)'"
>
> works in practice in Stata 8, at least. Whether that's a back door
> which StataCorp will lock in future versions I can't say.
>
> This exploits two (apparent) facts.
>
> 1. Even in Stata 8, temporary names are no longer than
> 8 characters. So a statement somewhere in the
> documentation that you cannot add suffixes
> to temporary names is no longer correct.
>
> 2. Conversely, when a program ends all variables
> whose names begin with __ (underscore underscore)
> are -drop-ped.
>
> Nick
> n.j.cox@durham.ac.uk
>
> *
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>


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