## Not run:
# if (require(tmap)) {
# data(Europe)
#
# f <- tempfile()
# download.file("http://kejser.org/wp-content/uploads/2014/06/Country.csv", destfile = f)
# domain_codes <- read.table(f, header=TRUE, sep="|")
# unlink(f)
#
# domain_codes <- subset(domain_codes, select = c("Alpha3Code", "TopLevelDomain"))
# domain_codes$Alpha3Code <- toupper(domain_codes$Alpha3Code)
#
# Europe <- append_data(Europe, domain_codes, key.shp = "iso_a3", key.data = "Alpha3Code",
# ignore.na = TRUE)
#
# # codes in the data, but not in Europe:
# oc <- over_coverage()
# oc$value
#
# # European countries without appended data:
# uc <- under_coverage()
# qtm(Europe[uc$id,], text="name")
#
# # plot the result
# qtm(Europe, text="TopLevelDomain")
# }
# ## End(Not run)
Run the code above in your browser using DataLab