[R] column of dates into time series

[Linlin Yan]

There is no year() function. Maybe you can try format() instead.

On Sun, Nov 29, 2009 at 8:44 PM, DispersionMap <frenchcr at btinternet.com> wrote:
>
> i have a column of dates in this format:
>
> data[,"Raised.Date"] <- as.Date(data[,"Raised.Date"], "%d/%m/%Y");
> data[1:10,"Raised.Date"]
> [1] "2006-07-07" "2006-07-07" "2006-04-03" "2006-04-03" "2006-04-03"
> "2006-04-03" "2006-04-03" "2006-04-03" "2006-04-03" "2006-04-03"
>
> I can turn them into months like this...
>
> Month<-months(data[,"Raised.Date"])
> Month[1:10]
> [1] "July"  "July"  "April" "April" "April" "April" "April" "April" "April"
> "April"
>
>
> But i also want to turn them into years (and also weeks later on), so tried
> this...
>
> Year<-year(data[,"Raised.Date"])
> Error: could not find function "year"
>
>
> thanks.
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