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Re: st: How to select missing variables for analysis?


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: How to select missing variables for analysis?
Date   Thu, 4 Oct 2007 14:20:35 +0100 (BST)

--- Ziad El-Khatib <Ziad.El-Khatib@ki.se> wrote:
> it might be very basic question, but any tips will be great!
> In my dataset, missing variables are given value of "888", I know how
> to label them as missing in SPSS and this won't affect analysis, so
> they will not be shown.
> 
> I ma trying to find a way to let STATA analyse dataset by avoiding
> including records with value 888 in variable "weight" (for example)

A missing value in Stata is refered to as ".", so you can use -recode-,
to turn the values 888 into . :
recode weight (888=.)

Or if you prefer to keep the original variable intact, you can type:
recode weight (888=.), gen(newweight)

Hope this helps,
Maarten

-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands

visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434

+31 20 5986715

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


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