[R] mapping states with colors

[Greg Snow]

You may want to use the state.vbm data from the TeachingDemos package (along with the maptools package), see the examples and help file for state.vbm.

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-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Donald Braman
> Sent: Thursday, July 02, 2009 7:12 PM
> To: r-help
> Subject: [R] mapping states with colors
> 
> Hi folks,
> I'm just learning how to use maps.  As an initial foray, I'm mapping
> the
> states that have "duty to retreat" (blue) and "stand your ground" (red)
> self-defense standards.  Here is my extremely naive script:
> 
> dtr <- c('alabama', 'arizona', 'conneticut', 'delaware', 'dist of
> columbia'
> , 'hawaii', 'maryland', 'massachusetts', 'minnesota', 'missouri',
> 'nebraska'
> , 'new hampshire', 'new jersey', 'new mexico', 'new york', 'north
> carolina'
> , 'north dakota', 'ohio', 'pennsylvania', 'rhode island', 'virginia',
> 'wyoming', 'arkansas', 'vermont')
> 
> 
> syg <-  c( 'alaska', 'california', 'colorado', 'florida', 'georgia',
> 'idaho'
> , 'illinois', 'indiana', 'iowa', 'kansas', 'kentucky', 'louisiana',
> 'maine'
> , 'michigan', 'mississippi', 'montana', 'nevada', 'oklahoma', 'oregon',
> 'south
> carolina', 'south dakota', 'tennessee', 'texas', 'utah', 'washington',
> 'west
> va', 'wisconsin')
> 
> 
> map('state', proj='bonne', param=50,
> 
> region = c(syg, dtr),
> 
> fill=TRUE,
> 
> col=c('red', 'blue'))
> 
> Obviously that doesn't work.  A couple questions:
> 
> 1. How do I get Alaska & Hawaii on the map?
> 2. How to I set the col atttribute for a subset of the states I'm
> mapping?
> 
> Many thanks in advance for any help!
> 
> Don
> 
> Donald Braman
> http://www.culturalcognition.net
> http://ssrn.com/author=286206
> http://www.law.gwu.edu/Faculty/profile.aspx?id=10123
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-contained, reproducible code.