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Re: st: create unique variables


From   "Fouarge.j. " <[email protected]>
To   [email protected]
Subject   Re: st: create unique variables
Date   Fri, 04 Feb 2005 11:58:12 +0100

you could try this (assuming var a = last name, b = first name, ...):
sort a b c 
gen tel=_n
by a b c: egen pid=min(tel)
drop tel

didier


-----Original Message-----
From: "Paolo Grillo, MD" <[email protected]>
To: [email protected]
Date: Fri, 04 Feb 2005 10:13:10 +0100
Subject: st: create unique variables

I have a dataset with the following variables:

last name
first name
date of birth

Since this dataset contains more than one record for individual, I would 
create a  unique variable for subject (ID).
Could anyone help me in this problem?
Thank in advance

-- 



* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 

Paolo Grillo MD
Nephrologist 
Statisticians
EPOCA Research Center for Occupational, Clinical & Environmental Epidemiology
Department of Occupational and Environmental Health "Clinica L. Devoto"
University of Milan
Via San Barnaba 8
20122 Milano - ITALY
Tel: +39 02 503-20148
Fax: +39 02 503-20126
E-Mail [email protected]



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