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#' website traffic from IWV
#'
#' website traffic as tracked by iwv online.
#' Use yyyymm for query() as resource.
#' This is an example for the \code{urldata} function.
#'
#' @seealso \code{\link{urldata}}
#'
#' @return UrlData object
#' @references
#' \href{http://en.wikipedia.org/wiki/Informationsgemeinschaft_zur_Feststellung_der_Verbreitung_von_Werbetraegern}{Wikipedia}
#' @docType data
#' @export
iwv_online <- function() urldata(
resource="Iwv",
template="http://ausweisung.ivw-online.de/i.php?s=$(detail_level)&mz=$(year)$(month)&csv=1", # s defines the detail level 1:3
detail_level=1,
year=strftime(Sys.time(), "%Y"),
month=strftime(Sys.time(), "%m"),
extract.fct=readLines,
transform.fct=function(x) {
i <- min(which(x==""))
dat <- read.csv2(textConnection(x[1:(i-1)]), header=TRUE, na.strings="---", stringsAsFactors=FALSE)
dat$X <- NULL
dat$Hinweis <- as.character(dat$Hinweis)
dat[is.na(dat$Hinweis), "Hinweis"] <- ""
numCols <- c("Visits.Gesamt", "Visits.Inland", "Visits.Ausland", "Visits.Vormonat", "Visits.Vorjahresmonat", "Redaktioneller.Content.Kategorienvisits.Gesamt", "Redaktioneller.Content.Kategorienvisits.Inland", "Redaktioneller.Content.Kategorienvisits.Ausland", "User.generierter.Content.Kategorienvisits.Gesamt", "User.generierter.Content.Kategorienvisits.Inland", "User.generierter.Content.Kategorienvisits.Ausland", "E.Commerce.Kategorienvisits.Gesamt", "E.Commerce.Kategorienvisits.Inland", "E.Commerce.Kategorienvisits.Ausland", "Kommunikation.Kategorienvisits.Gesamt", "Kommunikation.Kategorienvisits.Inland", "Kommunikation.Kategorienvisits.Ausland", "Suchmaschinen..Verzeichnisse.und.Auskunftsdienste.Kategorienvisits.Gesamt", "Suchmaschinen..Verzeichnisse.und.Auskunftsdienste.Kategorienvisits.Inland", "Suchmaschinen..Verzeichnisse.und.Auskunftsdienste.Kategorienvisits.Ausland", "Spiele.Kategorienvisits.Gesamt", "Spiele.Kategorienvisits.Inland", "Spiele.Kategorienvisits.Ausland", "Diverses.Kategorienvisits.Gesamt", "Diverses.Kategorienvisits.Inland", "Diverses.Kategorienvisits.Ausland")
for (clmn in numCols) dat[,clmn] <- as.numeric(gsub("\\.", "", dat[,clmn]))
prozCols <- colnames(dat)[grep("Proz", colnames(dat))]
for (clmn in prozCols) {
tmp <- gsub(" %", "", dat[,clmn])
tmp <- gsub(",", ".", tmp)
dat[,clmn] <- as.numeric(tmp)
}
return(dat)
}
)
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