[R] readLines errors

Sat, 24 Dec 2011 01:14:23 -0800 

Hi All,
  I met a problem using readLines function to return the data from Google
maps.

  readLines(url("
http://ditu.google.cn/maps/geo?q=+qianshuichong,+guichi+anhui,+CN&output=csv&key=ABQIAAAAq8Fnd_oUka-7RdS6BrD7GBTqeABoQuNTXS36G_rkiwQnKRW6GBTkns8JpKz6y6dScgB8827dlddUlg";),
n=1, warn=FALSE)

[1] "200,4,30.6528380,117.4872250"

  The above code is ok because the address is English, but it cannot work
when i change the address into zh-hans (Chinese simplified). See below.

  
readLines(url("http://ditu.google.cn/maps/geo?q=+Ç°Ë®³å<http://ditu.google.cn/maps/geo?q=+%E5%89%8D%E6%B0%B4%E5%86%B2>
,+¹ó³Ø+°²»Õ,+Öйú&output=csv&key=ABQIAAAAq8Fnd_oUka-7RdS6BrD7GBTqeABoQuNTXS36G_rkiwQnKRW6GBTkns8JpKz6y6dScgB8827dlddUlg&language=zh-CN&region=zh_Hans"),
n=1, warn=FALSE)

[1] "400,0,0,0"

  The returned value is wrong. I also tried several other options, but
still have the same problem. The interesting thing is if i paste the URL
into the IE explorer directly, it do return the correct values.

  Anybody can give me some suggestions or hints to solve this?

  Thanks a lot.

 P.S. See below for the other possibilities i tried.

readLines(url("http://ditu.google.cn/maps/geo?q=+Ç°Ë®³å<http://ditu.google.cn/maps/geo?q=+%E5%89%8D%E6%B0%B4%E5%86%B2>
,+¹ó³Ø+°²»Õ,+Öйú&output=csv&key=ABQIAAAAq8Fnd_oUka-7RdS6BrD7GBTqeABoQuNTXS36G_rkiwQnKRW6GBTkns8JpKz6y6dScgB8827dlddUlg&language=zh-CN&region=zh"),
n=1, warn=FALSE)

[1] "400,0,0,0"

readLines(url("http://ditu.google.cn/maps/geo?q=+Ç°Ë®³å<http://ditu.google.cn/maps/geo?q=+%E5%89%8D%E6%B0%B4%E5%86%B2>
,+¹ó³Ø+°²»Õ,+Öйú&output=csv&key=ABQIAAAAq8Fnd_oUka-7RdS6BrD7GBTqeABoQuNTXS36G_rkiwQnKRW6GBTkns8JpKz6y6dScgB8827dlddUlg&language=zh-CN"),
n=1, warn=FALSE)

[1] "400,0,0,0"

readLines(url("http://ditu.google.cn/maps/geo?q=+Ç°Ë®³å<http://ditu.google.cn/maps/geo?q=+%E5%89%8D%E6%B0%B4%E5%86%B2>
,+¹ó³Ø+°²»Õ,+Öйú&output=csv&key=ABQIAAAAq8Fnd_oUka-7RdS6BrD7GBTqeABoQuNTXS36G_rkiwQnKRW6GBTkns8JpKz6y6dScgB8827dlddUlg&language=zh-CN"),
n=1, warn=FALSE,encoding="UTF-8")

[1] "400,0,0,0"


-- 
-----------------
Jane Chang
Queen's

        [[alternative HTML version deleted]]


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