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re: st: Post codes to locality
From
Christopher Baum <[email protected]>
To
"[email protected]" <[email protected]>
Subject
re: st: Post codes to locality
Date
Mon, 23 Apr 2012 08:30:56 -0400
<>
Ronnie said
-merge- ?
if postcode is common to both files then you should be able to -merge- and then keep if _merge == 3 no?
Yes, that is precisely the point of the Stata FAQ I referenced. The easiest way to juxtapose aggregate characteristics (e.g. locality) with individual characteristics (e.g., postcode) is via a merge. The fact that the concordance between the two will have many non-matching observations matters not. As Ronnie said, you just throw them away by focusing on _merge==3, that is, those localities with at least one postcode represented in your sample.
Kit
Kit Baum | Boston College Economics & DIW Berlin | http://ideas.repec.org/e/pba1.html
An Introduction to Stata Programming | http://www.stata-press.com/books/isp.html
An Introduction to Modern Econometrics Using Stata | http://www.stata-press.com/books/imeus.html
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