[R] Address matching (was R-help Digest, Vol 37, Issue 12)

[Roger Bivand]

On Sun, 12 Mar 2006, Ferran Carrascosa wrote:

> Hi r-users,
> 
> I would like to know if R have any solution to the "Address standardization".
> The problem is to classify a database of addresses with the real
> addresses of a streets of Spain. Ideally, I would like to assign
> Postal code, census data and other geographic information.

There are no such built-in databases in R, and commercial solutions are 
typically costly. I assume you have addresses, and need a spatial index or 
key to associate the addresses with polygon containers like postcodes or 
census tracts. If there are not too many and they are all close to each 
other, a GPS and a bike are very effective ... Watch out for false 
positives in commercial automatic address matching, they may be about 10% 
(mostly typing errors in input data, but can be honest errors in the 
software).

> 
> If this is not possible I would like to know solutions in R about text
> mining, text classification, distance within text data,...
> 

RSiteSearch("text mining") is quite productive.

> Any help will be appreciate
> 
> Thanks in advance
> 
> Ferran Carrascosa
> 
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-- 
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no