[R] CRAN - Package "activity" - how do you convert time (hh:mm) into radians in R 3.1.2 on Windows 7 OS 64bit

jwd jwd at surewest.net
Wed Nov 4 16:51:43 CET 2015

On Wed, 4 Nov 2015 09:02:46 +0100
Martin Maechler <maechler at stat.math.ethz.ch> wrote:

> >>>>> Bert Gunter <bgunter.4567 at gmail.com>
> >>>>>     on Tue, 3 Nov 2015 14:54:46 -0800 writes:
>     > ... should have said: with a 24 hour "clock".
>     > -- Bert
>     > Bert Gunter
> Hmm,  thank you Bert.
> I know nothing about measuring time in radians, and for me,
> 'radians' are angles, and hence we are talking about
> analogue watches when measuring time with them, and now, as a
> citizen from  "the watch maker country" I do like analogue
> watches or let's nowadays say "graphical" watches, i.e., with clock
> faces and short and long (hour and minute) hands, and I think I
> have only ever seen 12 h watches at least on church towers (yes,
> here in CH) or wrist watches...
> (?)
> Martin

The issue is apparently to analyze activity over a 24 hour cycle.  The
OP mentions the use of a camera trap so they are evidently analyzing
trap events by time of event.  The radian constraint is mentioned in
the Activity package docs.  


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