bysort id (year):replace var = var[2] if _n == 1 & mi(var)
Scott
-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-
statalist@hsphsun2.harvard.edu] On Behalf Of ncdcta00@uniroma2.it
Sent: Monday, December 04, 2006 8:27 AM
To: statalist@hsphsun2.harvard.edu
Subject: st: change value an old variable
Dear All,
I have a variable in a panel that in first year is missing for each
value. I want to swap this variable by the value of the variable in
second year? How do it in stata? i try with generate and replace but
not function.
Thanks a lot for your help
Catia
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