[R-sig-Geo] missing county in maps

[Greg Snow]

I don't know how to change the map for the maps package.  But the maptools package (and sp) will read and plot shape files.  2 possible sources for shapefiles that may have the more current counties are:

http://www.census.gov/geo/www/maps/ (http://www.census.gov/geo/cob/bdy/co/co00shp/co35_d00_shp.zip)
http://www.cloudmade.com/ (http://downloads.cloudmade.com/north_america/united_states/new_mexico/new_mexico.shapefiles.zip)

hope this helps,

-- 
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
801.408.8111


> -----Original Message-----
> From: r-sig-geo-bounces at stat.math.ethz.ch [mailto:r-sig-geo-
> bounces at stat.math.ethz.ch] On Behalf Of stubben
> Sent: Wednesday, June 03, 2009 8:52 PM
> To: r-sig-geo at stat.math.ethz.ch
> Subject: [R-sig-Geo] missing county in maps
> 
> Hi,
> 
> I 'm trying to color a county map of New Mexico based on some data I
> have - however, I have one extra county, Cibola, which is not in the
> county maps (v 2.1-0) database.  This county was created in 1981 by
> splitting the existing Valencia county in two.  Is there an easy way
> to  split the existing polygon in the county database or some other
> workaround?
> 
> #32 counties (Cibola is missing)
> map.text("county", "new mexico")
> 
> Thanks,
> 
> Chris Stubben
> 
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