Maps with R, part… n+1

January 11, 2011
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[This article was first published on Freakonometrics - Tag - R-english, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here)
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Following the idea posted on James Cheshire’s blog (here), I have tried to play a little bit with R and Google. And it works ! Consider for instance life expectancy at birth (that can be found – and downloaded – here). Using the following code, it is possible to generate an R graph in a web page,

install.packages("googleVis")
library(googleVis)
input=read.csv("UNdata_Export_20110111_101634359.txt",
sep=";",header=TRUE)
Map<- data.frame(input$Country.or.Area, input$Value)
names(Map)<- c("Country", "Age")
Geo=gvisGeoMap(Map, locationvar="Country", numvar="Age",
options=list(height=350, dataMode='regions'))
plot(Geo)

XX(ok, there are still some problems with some countries – e.g. Russia and the US – but it should not be that difficult to fix). Thanks James, this is awesome !

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