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st: RE: Can you get sign of value only?


From   "Marino, Jennifer" <jmarino@fhcrc.org>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Can you get sign of value only?
Date   Thu, 23 Mar 2006 15:11:23 -0800

Maybe I'm not understanding, but couldn't you just do this?

gen z = x
replace z = x*(-1) if y<0

Jen Marino


-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Danielle H.
Ferry
Sent: Thursday, March 23, 2006 2:57 PM
To: statalist@hsphsun2.harvard.edu
Subject: st: Can you get sign of value only?


Hi there,
Is it possible to get the sign of a value? I.e., I would like to
multiply the var x by either -1 or +1 depending on the sign of var y.
Can I do this? Danielle H Ferry

--
National Bureau of Economic Research <http://www.nber.org>

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