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Re: st: RE: selecting all variables but a few


From   Ada Ma <pec187@abdn.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: selecting all variables but a few
Date   Tue, 11 May 2004 21:11:04 +0100

Hi Nick,

Thanks a lot for the link and the codes, especially the -missing- command.
Now I can pry myself off the chair and leave my office!!

Cheers,

Ada



Nick Cox wrote:

There are several ways to do this.
One is
. ds <varlist>, not
This returns all variables _except_ those in <varlist>, after which you can go

foreach v of var `r(varlist)' { ...
}
Also look at the options of -ds-.
Another is to use the facilities in -macrolists-. See -whelp macrolists-.
For what looks like your particular problem here, check out http://www.stata.com/support/faqs/data/missing.html



Nick n.j.cox@durham.ac.uk


-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu]On Behalf Of Ada Ma
Sent: 11 May 2004 19:29
To: statalist@hsphsun2.harvard.edu
Subject: st: selecting all variables but a few


Hello Statalist,

I want to do something like this:

foreach var of varlist * {
replace `var'=`var'[_n-1] if pid==pid[_n-1] & `var'==.
replace `var'=`var'[_n+1] if pid==pid[_n+1] & `var'==.
}

My problem is that I have a large number of variables in my dataset and I don't want my commands to be applied to ALL variables. What commands can I use to select all variables but a few?

Many thanks in advance.

Ada





--
Ada Ma
Research Assistant
Department of Economics
University of Aberdeen Business School
Edward Wright Building F55
http://www.abdn.ac.uk/economics/
http://www.abdn.ac.uk/~pec187/firstpage.htm
Tel:   +44 1224 273417
Fax:   +44 1224 272181
Email: a.ma@abdn.ac.uk

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