[R] Vectors of years, months, and days to dates?
p.dalgaard at biostat.ku.dk
Mon Jun 7 18:56:57 CEST 2004
"Shin, Daehyok" <sdhyok at email.unc.edu> writes:
> Thanks, but, what I want is to convert three vectors of years, months, and
> days directly into POSIXlt or Date objects
> without creating character vectors.
Well, if you insist:
x <- as.POSIXlt(structure(rep(0,2),class="POSIXct"))
x$year <- years-1900
x$mon <- months-1
x$mday <- days
This is definitely not kosher programming, and I doubt that it is the
least bit faster than the other solutions, but there's no character
vectors in there...
O__ ---- Peter Dalgaard Blegdamsvej 3
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