Nothing
# insert commas and an and between the elements of a character vector
xAnd <- function(x) {
n <- length(x)
lt <- x[1]
if (n > 1) {
if (n > 2) for (i in 2:(n)) lt <- paste(lt, ", ", x[i], sep="")
lt <- paste(lt, "and", x[n])
}
return(lt)
}
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