On 14/01/2012 10:33 a.m., Dimitri Liakhovitski wrote:
Somewhat related question out of curiousity:
Does anyone know how often the list of the counties and county names
is updated in this package? Or is it done centrally for all packages
that deal with US counties?
Thanks!
Dimitri
Well, I would
Dear Rers,
is there a way to color counties on a full US map based on a criterion
one establishes (i.e., all counties I assign the same number should be
the same color)?
I explored a bit and looks like the package maps might be of help.
library(maps)
One could get a map of the US: map('usa')
One
Hi,
You've just about got it. See below.
On Fri, Jan 13, 2012 at 11:52 AM, Dimitri Liakhovitski
dimitri.liakhovit...@gmail.com wrote:
Dear Rers,
is there a way to color counties on a full US map based on a criterion
one establishes (i.e., all counties I assign the same number should be
the
Sarah, this is amazing, thank you so much.
One question: I am trying to do for the whole US (on one map) what
you've helped me do for Iowa.
In other words, I would like to create a file of inputs like you
countycol with 1,000+ lines - for all US counties (probably without
Hawaii and Alaska,
On Fri, Jan 13, 2012 at 12:15 PM, Dimitri Liakhovitski
dimitri.liakhovit...@gmail.com wrote:
Sarah, this is amazing, thank you so much.
One question: I am trying to do for the whole US (on one map) what
you've helped me do for Iowa.
In other words, I would like to create a file of inputs like
Thank you somuch, Sarah. I tried, and it's working just wonderfully
(code below).
One last question, if I may: is it possible to get rid of borders
between counties (just leave the fill)? I did not find this argument
in help...
Thank you!
Dimitri
### My criterion for all counties.:
Just to clarify, according to help about the fill argument:
logical flag that says whether to draw lines or fill areas. If FALSE,
the lines bounding each region will be drawn (but only once, for
interior lines). If TRUE, each region will be filled using colors from
the col = argument, and bounding
On Fri, Jan 13, 2012 at 1:41 PM, Dimitri Liakhovitski
dimitri.liakhovit...@gmail.com wrote:
Thank you somuch, Sarah. I tried, and it's working just wonderfully
(code below).
One last question, if I may: is it possible to get rid of borders
between counties (just leave the fill)? I did not find
On Fri, Jan 13, 2012 at 1:52 PM, Dimitri Liakhovitski
dimitri.liakhovit...@gmail.com wrote:
Just to clarify, according to help about the fill argument:
logical flag that says whether to draw lines or fill areas. If FALSE,
the lines bounding each region will be drawn (but only once, for
But the help does say that additional arguments are passed to lines(),
so you can use lty=0.
That can leave white bits between counties if the areas don't line up
precisely, so I think it looks better with the lines in black.
I agree, indeed it leaves white bits. Of course, I could try to
Changing the color of the borders is what the border argument to
polygon() would do, if only it hadn't been overridden.
So no, you can't easily change the line color. It would be an easy
tweak to the code to add a polyborder argument that is passed
to polygon() as border, though. That would solve
You can set the fg graphics parameter, for example
oldpar - par(fg='white') # change the default fg (foreground color) to
white
map('county', 'iowa', fill=TRUE, col='light gray')
oldpar # reset fg to the default - black
map('state', 'iowa', lwd=3, add=TRUE)
Assuming you want the state outline in
Sarah, David, thank you very much for your help! It all works now:
### My criterion for all counties:
allcounties-data.frame(county=map('county', plot=FALSE)$names)
allcounties$group-c(rep(1:6,513),rep(1,4))[order(c(rep(1:6,513),rep(1,4)))]
### My colors:
classcolors - rainbow(6)
### For gray
On 14/01/2012 8:04 a.m., Sarah Goslee wrote:
On Fri, Jan 13, 2012 at 1:52 PM, Dimitri Liakhovitski
dimitri.liakhovit...@gmail.com wrote:
Just to clarify, according to help about the fill argument:
logical flag that says whether to draw lines or fill areas. If FALSE,
the lines bounding each
Hi Ray,
I'm glad to see you here. I was going to write this up a bit more
clearly and email it to you, but now I don't have to bother. :)
Coincidentally, I became aware of this just recently. When the maps package
was created (way back in the 'new' S era), polygon() didn't add borders,
and
Everyone, thanks a lot - this is great:
### My criterion for all counties:
allcounties-data.frame(county=map('county', plot=FALSE)$names)
allcounties$group-c(rep(1:6,513),rep(1,4))[order(c(rep(1:6,513),rep(1,4)))]
### My colors:
classcolors - rainbow(6)
### 1. If I want to have no borders
Somewhat related question out of curiousity:
Does anyone know how often the list of the counties and county names
is updated in this package? Or is it done centrally for all packages
that deal with US counties?
Thanks!
Dimitri
On Fri, Jan 13, 2012 at 3:41 PM, Ray Brownrigg
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