[R] Zeitreihen problem
Thomas W Blackwell
tblackw at umich.edu
Mon May 12 17:59:43 CEST 2003
as.character() converts from a factor back to character strings.
In this context,
result <- strptime(as.character(disc[ ,1]), format="%m/%d/%y")
or something like that. Thanks for asking a second time: when I
saw the earlier response, I wondered whether this conversion would
be a problem.
- tom blackwell - u michigan medical school - ann arbor -
On Mon, 12 May 2003, Wojtek Musial wrote:
> Thanks for the answer(s), but my specific problem is to change the objects
> like
>
> > disc[1,1]
> [1] 01/03/1955
> 17647 Levels: 01/01/1956 01/01/1957 01/01/1958 01/01/1959 ... 12/31/2002
>
> which are factors to a string like "01/03/1955". I can't find any way to
> convert it to such a string, which can then be converted using for example
>
> > strptime(datevec, format="%m/%d/%Y")
>
> Wojtek Musial
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