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®ion=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®ion=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]]
On Dec 24, 2011, at 4:12 AM, rusers.sh wrote:> 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=+??????<http://ditu.google.cn/maps/geo?q=+%E5%89%8D%E6%B0%B4%E5 > %86%B2> > ,+????+????, > + > ?? > ? > ? > &output > = > csv > &key > = > ABQIAAAAq8Fnd_oUka > -7RdS6BrD7GBTqeABoQuNTXS36G_rkiwQnKRW6GBTkns8JpKz6y6dScgB8827dlddUlg > &language=zh-CN®ion=zh_Hans"), > n=1, warn=FALSE)When I plug that URL into my browser (Firefox) I get this text on a white background: 602,0,0,0 When I execute that code in R I get: [1] "{" And when I remove the lines restriction I get: [1] "{" [2] " \"name\": \" ??????\\u003chttp://ditu.google.cn/maps/geo? q= ???\\u003e\"," [3] " \"Status\": {" [4] " \"code\": 602," [5] " \"request\": \"geocode\"" [6] " }" [7] "}" I don't read Chinese , however it does appear that there was some sort of extra processing step that Firefox carried out to arrive at the displayed text.> > [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=+??????<http://ditu.google.cn/maps/geo?q=+%E5%89%8D%E6%B0%B4%E5 > %86%B2> > ,+????+????, > + > ?? > ? > ? > &output > = > csv > &key > = > ABQIAAAAq8Fnd_oUka > -7RdS6BrD7GBTqeABoQuNTXS36G_rkiwQnKRW6GBTkns8JpKz6y6dScgB8827dlddUlg > &language=zh-CN®ion=zh"), > n=1, warn=FALSE) > > [1] "400,0,0,0" > > readLines(url("http://ditu.google.cn/maps/geo?q=+??????<http://ditu.google.cn/maps/geo?q=+%E5%89%8D%E6%B0%B4%E5 > %86%B2> > ,+????+????, > + > ?? > ? > ? > &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=+??????<http://ditu.google.cn/maps/geo?q=+%E5%89%8D%E6%B0%B4%E5 > %86%B2> > ,+????+????, > + > ?? > ? > ? > &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]] > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code.David Winsemius, MD West Hartford, CT
Hi All, I just tried Firefox that David referred and found it can also return the correct result as Google Chrome. So now it is more clear now that readLines() function uses IE as the default explorer, so it return the wrong result. Then the possible solutions are, 1. Could we change the options in readLines() to set another explorer as the default explore, e.g. Google Chrome? 2. Could it be possible to set IE explorer in a rational way, so that it can return the same results as Google Chrome and Firefox? I have tried to modify the encoding method in IE, but it doesnot work. Any suggestions or help? ÔÚ 2011Äê12ÔÂ24ÈÕ ÏÂÎç5:12£¬rusers.sh <rusers.sh@gmail.com>дµÀ£º> 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®ion=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®ion=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 >-- ----------------- Jane Chang Queen's [[alternative HTML version deleted]]