> It is probably something blindingly simple but can
> anyone suggest something?
You need to use the format code "%Y" for 4-digits years.
You need to create a data frame using 'data.frame()' (cbind() creates a
matrix when given just vectors).
> as.Date(c("2005/01/24" ,"2006/01/23" ,"2006/01/23"), "%Y/%m/%d")
[1] "2005-01-24" "2006-01-23" "2006-01-23"
> data.frame(int=1:3, date=as.Date(c("2005/01/24" ,"2006/01/23"
,"2006/01/23"), "%Y/%m/%d"))
int date
1 1 2005-01-24
2 2 2006-01-23
3 3 2006-01-23
> (x <- data.frame(int=1:3, date=as.Date(c("2005/01/24" ,"2006/01/23"
,"2006/01/23"), "%Y/%m/%d")))
int date
1 1 2005-01-24
2 2 2006-01-23
3 3 2006-01-23
> class(x)
[1] "data.frame"
> sapply(x, class)
int date
"integer" "Date"
>
-- Tony Plate
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