Re: [R] How to draw a map of Europe?

2011-03-20 Thread Michael Friendly

On 3/19/2011 8:32 PM, Sally Luo wrote:

Also, is it possible to draw a historical map of European countries using R?


If you want a map of France ~ 1830, see
http://www.datavis.ca/gallery/guerry/guerrymap.html

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[R] How to draw a map of Europe?

2011-03-19 Thread Sally Luo
Hi R users,

I need to draw a map of select European countries with country names shown
on the map.  Does anyone know how to do this in R?

Also, is it possible to draw a historical map of European countries using R?

Thanks a lot for your help.

Maomao

[[alternative HTML version deleted]]

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Re: [R] How to draw a map of Europe?

2011-03-19 Thread Mike Marchywka








 Date: Sat, 19 Mar 2011 19:32:43 -0500
 From: shali...@gmail.com
 To: r-help@r-project.org
 Subject: [R] How to draw a map of Europe?

 Hi R users,

 I need to draw a map of select European countries with country names shown
 on the map. Does anyone know how to do this in R?

 Also, is it possible to draw a historical map of European countries using R?

This came up on this list a while ago and I was just using that example
for some work I'm doing but I have only copied what was posted
and added minor things to it. I can't give you actual answer
but you are probably just a few key words away from a google searhc.
 The term you are probably looking for
is shapefile. Try that on google. For example,

http://www.google.com/#sclient=psyhl=enq=shapefile+cran+europe

turns up things that may help.





 Thanks a lot for your help.

 Maomao

  
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Re: [R] How to draw a map of Europe?

2011-03-19 Thread David Winsemius


On Mar 19, 2011, at 8:32 PM, Sally Luo wrote:


Hi R users,

I need to draw a map of select European countries with country names  
shown

on the map.  Does anyone know how to do this in R?


Adding a tiny bit to the material produced from a search and finding  
something from Roger Bivand in response to Rense Nieuwenhuis:


http://finzi.psych.upenn.edu/R/Rhelp02/archive/85586.html

require(maps)

 country2001 - c(Austria, Belgium, Switzerland,
 Czechoslovakia, Germany, Denmark, Spain, Finland, France,
 UK, Greece, Hungary, Ireland, Israel, Italy,
 Luxembourg, Netherlands, Norway, Poland, Portugal,
 Sweden, Slovenia)
 color2001 - c(green, yellow,red,red, red, red, red,
 red, green, red, red, red, red, red, red, red,
 red, blue, red, red, red, orange)

europe$names[grep(Sicily, europe$names)] - Italy:Sicily
europe$names[grep(Sardinia, europe$names)] - Italy:Sardinia
match - match.map(europe,country2001)
color - color2001[match]
map(database=world, fill=TRUE, col=color,  
xlim=c(-25,70),ylim=c(35,71))


text(0, 45, France)




Also, is it possible to draw a historical map of European countries  
using R?


Thanks a lot for your help.

Maomao

[[alternative HTML version deleted]]

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David Winsemius, MD
West Hartford, CT

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Re: [R] How to draw a map of Europe?

2011-03-19 Thread Spencer Graves
  I've created historical maps using R, but it required careful 
research, translating the boundaries into longitude and latitude shape 
files, then plotting them, similar to the example that David just 
provided.  It seemed to be the easiest way I knew to produce the desired 
result, but it still took a moderate level of effort.



  Hope this helps.
  Spencer Graves


On 3/19/2011 6:51 PM, David Winsemius wrote:


On Mar 19, 2011, at 8:32 PM, Sally Luo wrote:


Hi R users,

I need to draw a map of select European countries with country names 
shown

on the map.  Does anyone know how to do this in R?


Adding a tiny bit to the material produced from a search and finding 
something from Roger Bivand in response to Rense Nieuwenhuis:


http://finzi.psych.upenn.edu/R/Rhelp02/archive/85586.html

require(maps)

 country2001 - c(Austria, Belgium, Switzerland,
 Czechoslovakia, Germany, Denmark, Spain, Finland, France,
 UK, Greece, Hungary, Ireland, Israel, Italy,
 Luxembourg, Netherlands, Norway, Poland, Portugal,
 Sweden, Slovenia)
 color2001 - c(green, yellow,red,red, red, red, red,
 red, green, red, red, red, red, red, red, red,
 red, blue, red, red, red, orange)

europe$names[grep(Sicily, europe$names)] - Italy:Sicily
europe$names[grep(Sardinia, europe$names)] - Italy:Sardinia
match - match.map(europe,country2001)
color - color2001[match]
map(database=world, fill=TRUE, col=color, xlim=c(-25,70),ylim=c(35,71))

text(0, 45, France)




Also, is it possible to draw a historical map of European countries 
using R?


Thanks a lot for your help.

Maomao

[[alternative HTML version deleted]]


David Winsemius, MD
West Hartford, CT

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http://www.R-project.org/posting-guide.html

and provide commented, minimal, self-contained, reproducible code.



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