[R] Date formats
Mikkel Grum
mi2kelgrum at yahoo.com
Sun Dec 30 07:45:38 CET 2007
Is the following expected behaviour for a date used in
an ifelse function?
> date <- Sys.Date()
> date
[1] "2007-12-30"
> ifelse(TRUE, date-1, date)
[1] 13876
> ifelse(FALSE, date-1, date)
[1] 13877
> ifelse(TRUE, as.character(date-1), date)
[1] "2007-12-29"
> if (TRUE) {date}
[1] "2007-12-30"
It would seem more natural to me if a date produced
the same format in an if and an ifelse function.
Moreover, as far as I can see the ifelse function
consists of hardly anything but two if functions.
Mikkel
> sessionInfo()
R version 2.6.1 (2007-11-26)
i386-pc-mingw32
locale:
LC_COLLATE=English_Ireland.1252;LC_CTYPE=English_Ireland.1252;LC_MONETARY=English_Ireland.1252;LC_NUMERIC=C;LC_TIME=English_Ireland.1252
attached base packages:
[1] stats graphics grDevices utils datasets
methods base
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