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st: RE: Re: Unique identifier


From   "David Harrison" <David@icnarc.org>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Re: Unique identifier
Date   Fri, 29 Oct 2004 14:56:44 +0100

As a long variable can only contain integer numbers and not strings, I strongly suspect you already have what you want!

The command -encode- helpfully produces value labels to enable you to identify which string converted to which numeric value. If you do not want these labels, type -label drop code1-.

David
david@icnarc.org

-----Original Message-----
From: Janet Willard [mailto:willard66@hotmail.com]
Sent: 29 October 2004 14:38
To: statalist@hsphsun2.harvard.edu
Subject: st: Re: Unique identifier


I have a dataset that consists of a number of patients and the tooth 
treated, typically of the form Evans LL5. I wanted to combine these into a 
single numerical variable to identify each specific patient / tooth 
combination. The syntax I have used is:
catenate code = patient tooth,punct(no)
encode code,gen(code1)
This returns a long variable which has the "numerical value" EvansLL5. What 
I really wanted was a numerical variable such as 1. Can I achive this?
Many thanks,
Janet

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