[R] as.Date converts to NA

Achim Zeileis Achim.Zeileis at uibk.ac.at
Sun Mar 9 17:39:52 CET 2014


On Sun, 9 Mar 2014, Hermann Norpois wrote:

> Hello,
> I have some problems with as.Date.
>
> strDates <- c ("01/05/1965", "08/16/1975")
> dates <- as.Date (strDates, "%m/%d%/%Y")
                                   ^^^^
Instead of "%d%" just "%d":

R> as.Date(strDates, "%m/%d/%Y")
[1] "1965-01-05" "1975-08-16"


> dates
> [1] NA NA # I expected my dates. What was going wrong?
>
> Thanks
> Hermann
>
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