[R] colored maps again

[Mike Lawrence]

Here's a bit of a hacky way to do it:


#get the names of each state
state=map('state',plot=F)$names

#set up some random state-color data
cols = as.data.frame(cbind(state=states,x=sample(1:10,length(states),replace=T)))

#do the plot
map('usa')
for(this_state in state){
	map('state',region=this_state,add=T,fill=T,col=cols$x[cols$state==this_state])
}



On Thu, Feb 19, 2009 at 12:45 PM, Alina Sheyman <alinashe at gmail.com> wrote:
> I'm trying to create a colored map that would show the number of students
> per state.
> My data frame consists of two columns - state and count.
> I'm using the following code
>
> library(maps)
> map("usa")
> library(plotrix)
> state.col<-color.scale(gre$count,0,0,c(0,1))
>  map("state",fill=TRUE,col=state.col)
>
> I'm getting a map, but the values are not being mapped to correct states.
> What do I need to do to fix that?
>
>        [[alternative HTML version deleted]]
>
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> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Mike Lawrence
Graduate Student
Department of Psychology
Dalhousie University
www.thatmike.com

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