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st: RE: RE: RE: AW: recoding a variable
From
"Lachenbruch, Peter" <[email protected]>
To
"'[email protected]'" <[email protected]>
Subject
st: RE: RE: RE: AW: recoding a variable
Date
Thu, 18 Feb 2010 11:27:00 -0800
I knew if I set down cool people I'd miss someone. Richard Williams, and Patrick Royston are obvious, so is Conroy. My apologies to all I have missed.
Tony
Peter A. Lachenbruch
Department of Public Health
Oregon State University
Corvallis, OR 97330
Phone: 541-737-3832
FAX: 541-737-4001
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Nick Cox
Sent: Thursday, February 18, 2010 9:59 AM
To: [email protected]
Subject: st: RE: RE: AW: recoding a variable
See also (very distinguished Stata users) Douglas Altman and Patrick
Royston at
http://www.bmj.com/cgi/content/extract/332/7549/1080
Nick
[email protected]
Lachenbruch, Peter
A small comment: (Martin did cover this in his later post)
Be wary of replacing a variable you are recoding. It's usually better
to maintain the original data - you never know when someone will ask you
for a dichotomy cutting at 0.75, etc. Also, my comment from a few days
ago about why do this still holds. You lose information.
Martin Weiss
replace var=var>.5
Data Analytics Corp.
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?
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