[R] Removing
Patrick Burns
pburns at pburns.seanet.com
Thu Mar 12 19:31:17 CET 2009
Simpler, but maybe wrong. Not duplicated
was my first response as well, but then I began
wondering if the question implied globally
duplicated or duplicated within subgroups.
Patrick Burns
patrick at burns-stat.com
+44 (0)20 8525 0696
http://www.burns-stat.com
(home of "The R Inferno" and "A Guide for the Unwilling S User")
David Winsemius wrote:
> Much simpler would be:
>
> act2[!duplicated(act2$Rep),] #use the negation of the duplicated
> function on $Rep and indexing
>
> Date Dtime Hour Min Second Rep
> 51 2006-02-22 14:52:18 14 52 18 useractivity_act
> 52 2006-02-22 14:52:18 14 52 18 4
> 58 2006-02-22 14:52:52 14 52 52 3
> 60 2006-02-22 14:54:42 14 54 42 useractivity_idle
>
> Cannot reproduce the blank line though.
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