Please consider the following
$ R --vanilla
> as.Date("01 Jan 2000")
Error in charToDate(x) :
character string is not in a standard unambiguous format
But that date clearly is in a standard unambiguous format. Why the error message?
Worse, an ambiguous date is apparently accepted without warning or error and then read incorrectly!
> as.Date("01/01/2000")
[1] "0001-01-20"
I've searched and found 28 other questions in the [R] tag containing this error message. All with solutions and workarounds involving specifying the format, iiuc. This question is different in that I'm asking where are the standard unambiguous formats defined anyway, and can they be changed? Does everyone get these messages or is it just me? Perhaps it is locale related?
In other words, is there a better solution than needing to specify the format?
29 questions containing "[R] standard unambiguous format"
> sessionInfo()
R version 2.15.2 (2012-10-26)
Platform: x86_64-w64-mingw32/x64 (64-bit)
locale:
[1] LC_COLLATE=English_United Kingdom.1252
[2] LC_CTYPE=English_United Kingdom.1252
[3] LC_MONETARY=English_United Kingdom.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United Kingdom.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base