I believe in R you need library(maps)
before using usa(). Of course, the library has to be installed first. Cheers, Andy __________________________________ Andy Jaworski Engineering Systems Technology Center 3M Center, 518-1-01 St. Paul, MN 55144-1000 ----- E-mail: [EMAIL PROTECTED] Tel: (651) 733-6092 Fax: (651) 736-3122 |---------+--------------------------------> | | [EMAIL PROTECTED] | | | Sent by: | | | [EMAIL PROTECTED]| | | ath.ethz.ch | | | | | | | | | 11/03/2003 13:56 | | | | |---------+--------------------------------> >-----------------------------------------------------------------------------------------------------------------------------| | | | To: "R-list" <[EMAIL PROTECTED]> | | Martin Wegmann <[EMAIL PROTECTED]> | | cc: "Owen, Jason" <[EMAIL PROTECTED]> | | Subject: Re: [R] USA map | >-----------------------------------------------------------------------------------------------------------------------------| On 3 Nov 2003 at 16:33, Martin Wegmann wrote: > On Monday 03 November 2003 15:46, Owen, Jason wrote: > > R users, > > > > In S, there was a function called usa() that > > would draw the map of the United States, plus > > it had other options for graphics. I have looked > > but I can't find the equivalent in R. Is there one? > >Description > > I don't know the usa() function in S but usa() in R gives a map of the US Where did you find that function? In rw1080 on windows XP I get: > usa() Error: couldn't find function "usa" > (and help.search("usa") does'nt give anything usefull) Kjetil Halvorsen > > that's the output of a "usa " search, perhaps that is what you are looking > for: > > cheers Martin > > P.S.: www.freegis.org -> GeoData is worth a look for more maps > > usa() {map} > > This database produces a map of the United States mainland generated from US > Department of the Census data (see the reference). > > > Usage > > data(usaMapEnv) > > Format > > > The data file is merely an assignment to a character string which specifies > the name of an environment variable which contains the base location of the > binary files used by the map drawing functions. This environment variable > (R_MAP_DATA_DIR for the datasets in the maps package) is set at package load > time if it does not already exist. Hence setting the environment variable > before loading the package can override the default location of the binary > datasets. > > > References > > > Richard A. Becker, and Allan R. Wilks, "Maps in S", AT&T Bell Laboratories > Statistics Research Report [93.2], 1993. > > > Richard A. Becker, and Allan R. Wilks, "Constructing a Geographical Database", > AT&T Bell Laboratories Statistics Research Report [95.2], 1995. > > > US Department of Commerce, Census Bureau, County Boundary File, computer tape, > available from Customer Services, Bureau of the Census, Washingdon DC 20233. > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help