[R] weird to me interaction between time() and %%, %/%
Gabor Grothendieck
ggrothendieck at gmail.com
Wed Sep 1 05:11:30 CEST 2010
On Tue, Aug 31, 2010 at 7:04 PM, Alistair Gray <aggray at paradise.net.nz> wrote:
> Dear List,
> I'm getting weird and unexpected behaviour using time and %%, or %/%. It's
> likely I'm not appreciating the nuances of floating point arithmetic. Or it
> could be a bug.
>
Here are two workarounds to get the year
time(junk) - (cycle(junk) - 1) / frequency(junk)
library(chron)
month.day.year(junk)$year
and this will get the month as a number between 1 and 12:
cycle(junk)
--
Statistics & Software Consulting
GKX Group, GKX Associates Inc.
tel: 1-877-GKX-GROUP
email: ggrothendieck at gmail.com
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