On Sep 18, 2010, at 11:36 AM, David Winsemius wrote:
On Sep 18, 2010, at 11:25 AM, Santosh Srinivas wrote:
Strangely this is not working ... what am I doing wrong here?
tDate <- FnO_Data$Date[1]
tDate
[1] 20090101
as.Date(c(tDate),format="%Y%m%d")
[1] NA
?sasDate
as.Date does not take numeric arguments.
That's not correct. A numeric argument returns an NA ; at least with
zoo loaded, an origin of "1970-01-01" is implicitly assumed.
> as.Date(1)
[1] "1970-01-02"
> as.Date(20090101)
[1] "56974-10-30"
I would have seen this had I used methods(as.Date).
R version 2.11.1 Patched (2010-06-14 r52281)
[R.app GUI 1.35 (5590) x86_64-apple-darwin9.8.0]
snipped sessionInfo()
other attached packages:
[1] zoo_1.6-4
--
David.
Try:
> as.Date(as.character(tDate), format="%Y%M%d")
[1] "2009-09-01"
--
David Winsemius, MD
West Hartford, CT
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David Winsemius, MD
West Hartford, CT
______________________________________________
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
