Hello:
I have a problem when I tried to color the USA map with different colors.
The following is my data (I only used the second column of data):
alaska, 1, 2
Hawaii, 0, 0
USA, 5, 5
And here is my code:
library("latticeExtra")
library("mapproj")
state<-read.table("C:\\usaclass.txt",sep=",")
state
range<-with(state,range(state[1:3,3]))
range
nbreaks=6
breaks<-do.breaks(range,nbreaks)
StateName<-state[1:3,1]
StateName
mapplot(StateName~state[1:3,3],data=state,breaks=breaks,
map=map("world", c("USA", "Hawaii"), fill=TRUE) ,scales=list(draw=FALSE),
colramp = colorRampPalette(c("white", "black")),xlab=NULL)
After I run this code, the continental USA could be colored, but alaska is not
colored. I have tried to write alaska as "Alaska" and "USA:alaska". However, it
does not work. Do you have any suggestion? Thanks!
Sun
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