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st: RE: Generating numeric ids


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Generating numeric ids
Date   Mon, 8 Mar 2010 23:08:43 +0100

<>

*******
clear*

inp str10 ID V1 str10 V2
AAAAPTNE7		.	   .
AAAAPTNE7		.	   .
AAAARCOO7		1    "2002-2003"
AAACACRI7		2	   "2004-2005"
AAACAMCP3		1	   "2006-2007"
AAACARIC9		1    "2002-2003"
end

encode  ID, gen(numericid)
l, nolab sepby(ID) noo

*******


HTH
Martin


-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Dmitriy
Krichevskiy
Sent: Montag, 8. März 2010 23:01
To: statalist
Subject: st: Generating numeric ids

Dear Statalisters,
I have a large panel dataset creators of which decided to encrypt the
participants IDs via some unknown algorithm to covert them (original
id numbers) into strings. I am stock trying to figure out how to
create unique numerical identifiers from these given that the data is
panel (in the long format). I provide a small example below. As always
your help is much appreciated.Thanks, Dmitriy


    ID                         V 1                          V2
AAAAPTNE7		.		                 .
AAAAPTNE7		.		                 .
AAAARCOO7		1                         2002-2003
AAACACRI7		2	                   2004-2005
AAACAMCP3		1	                   2006-2007
AAACARIC9		1                         2002-2003

-- 

Research Associate, College of Education
Lumina Foundation Project
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