On Tue, 17 Jan 2012, David Winsemius wrote:
> On Jan 16, 2012, at 11:11 AM, Dimitri Liakhovitski wrote:
> > I am using "maps". I am running the following code to get this list of
> > all the counties:
> > 
> > map('county', plot=FALSE)$names
> > 
> > In the output, all counties have first the state listed and then,
> > after a comma, the name of the county.
> > 
> > However, county # 2395 (State = south dakota) has no county name.
> > Anyone knows what this county is?
> 
If you want a name, use Washabaugh.  It's a remnant of that county's merge with Jackson 
County.  At the time I didn't care to go through renumbering all the remaining counties.

The next version of maps will have this fixed.

Ray Brownrigg

> This question would seem more appropriate for greater efforts on your
> part:
> 
> http://southdakota.hometownlocator.com/counties/
> 
> (That was the second hit on a google search:  counties of south dakota )
> 
> After:
> conames <- scan(what="character")
> <and pasting in the selected text>
> conames <- c("Aurora", "Beadle", "Bennett", "Bon Homme", "Brookings",
> "Brown", "Brule", "Buffalo", "Butte", "Campbell", "Charles Mix",
> "Clark", "Clay", "Codington", "Corson", "Custer", "Davison",
> "Day", "Deuel", "Dewey", "Douglas", "Edmunds", "Fall River",
> "Faulk", "Grant", "Gregory", "Haakon", "Hamlin", "Hand", "Hanson",
> "Harding", "Hughes", "Hutchinson", "Hyde", "Jackson", "Jerauld",
> "Jones", "Kingsbury", "Lake", "Lawrence", "Lincoln", "Lyman",
> "Marshall", "McCook", "McPherson", "Meade", "Mellette", "Miner",
> "Minnehaha", "Moody", "Pennington", "Perkins", "Potter", "Roberts",
> "Sanborn", "Shannon", "Spink", "Stanley", "Sully", "Todd", "Tripp",
> "Turner", "Union", "Walworth", "Yankton", "Ziebach")
> 
> Note: there are three names with spaces that I joined:
>  > length(conames)
> 
> [1] 66
> 
>  > length(map('county', 'south dakota', plot=FALSE)$names)
> 
> [1] 67
> 
> https://www.google.com/search?q=how+many+counties+in+south+dakota&ie=utf-8&
> oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
> 
> (Wikipedia confirms there are 66 counties in SD.)
> 
> So the answer is apparently ... it's NOT a county. Furthermore efforts
> 
> to plot it fail with an error about faulty settings:
>  > map('county', 'south dakota', exact=TRUE)
> 
> Error in par(usr = usr) :
>    invalid value specified for graphical parameter "usr"
> 
> So it's some sort of blank entry in that 'map' database.
> 
>  > str(map('county', 'south dakota', exact=TRUE,  plot=FALSE)[[1]])
> 
>   num [1:2] -101 -101
> 
> str(map('county', 'south dakota,aurora', exact=TRUE,  plot=FALSE)[[1]])
>   num [1:20] -98.3 -98.3 NA -98.7 -98.3 ...
> 
> I do not see any other blank county listings in 'new jersey' or 'north
> dakota'.


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