Hi Guillaume, What is your sessionInfo() ? It works me:
> x <- c("1jan1960", "2jan1960", "31mar1960", "30jul1960") > z <- strptime(x, "%d%b%Y") > z [1] "1960-01-01" "1960-01-02" "1960-03-31" "1960-07-30" > sessionInfo() R version 2.9.2 RC (2009-08-23 r49375) i386-pc-mingw32 locale: LC_COLLATE=English_United States.1252;LC_CTYPE=English_United States.1252;LC_MONETARY=English_United States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base HTH, Jorge On Mon, Oct 26, 2009 at 4:31 PM, guillaume chaumet <> wrote: > Hi everybody > When I try example of strptime > x <- c("1jan1960", "2jan1960", "31mar1960", "30jul1960") > z <- strptime(x, "%d%b%Y") > > The result is; > > > z > [1] NA NA NA NA > > I have got the same result with complete form of month but not with numeric > form. > > Any idea? > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.