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st: AW: AW: recoding a variable


From   "Martin Weiss" <[email protected]>
To   <[email protected]>
Subject   st: AW: AW: recoding a variable
Date   Thu, 18 Feb 2010 14:05:44 +0100

<> 

As always with the "greater than" operator in Stata, special care should be
taken with regard to missings. So my expanded advice for you would be to
explicitly account for them:


*************
clear*
set obs 10000
 
gen var=runiform()
su var

//introduce missings
replace var=. in 5/8
ins var

//explicity deal with missings
gen byte newvar=var>.5 & !mi(var)
ta newvar, mis

l in 1/10, noo
*************



HTH
Martin


-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Martin Weiss
Gesendet: Donnerstag, 18. Februar 2010 13:53
An: [email protected]
Betreff: st: AW: recoding a variable


<> 



*************
replace var=var>.5
*************



HTH
Martin

-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Data Analytics
Corp.
Gesendet: Donnerstag, 18. Februar 2010 01:12
An: [email protected]
Betreff: st: recoding a variable

Hi,

I got some very good quick advice on a looping question I asked 
earlier.  I have another question.  Suppose I have a variable with 
values that range between 0 ands 1.  I simply want to recode this so 
that any value greater than 0.5 becomes a 1, and 0 otherwise.  How do I 
do this?

Thanks,

Walt



-- 
________________________

Walter R. Paczkowski, Ph.D.
Data Analytics Corp.
44 Hamilton Lane
Plainsboro, NJ 08536
________________________
(V) 609-936-8999
(F) 609-936-3733
[email protected]
www.dataanalyticscorp.com

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