[R] Date conversion

Peter Dalgaard P.Dalgaard at biostat.ku.dk
Thu Nov 13 18:14:41 CET 2008


Dr. Alireza Zolfaghari wrote:
> Hi List,
> If I have a date format as:
> d <- "2001/1/1"
> I can easily convert it to number by using as.Date(d).

Yes. If it means "January the 1st" and not "1st of January", that is...


> But if I have d<-"1/1/2001", it does not work. Does anyone know how I can
> convert it using pre-written function in R?

as.Date has a format= argument. See the Examples section in help(as.Date).

> Regards,
> Alireza


-- 
   O__  ---- Peter Dalgaard             Øster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
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