? duplicated
!duplicated(a.ord, fromLast = TRUE)
HTH,
Michael
On Tue, May 15, 2012 at 9:37 PM, Axel Urbiz axel.ur...@gmail.com wrote:
Dear List,
How can I get a logical vector as shown by a.ord.last below (i.e., it is
FALSE whenever there are subsequent equal values of an ordered vector and
FALSE otherwise)?
a - c(1,1,2,1,3,4,3,5,6)
a.ord - a[order(a)]
a.ord
a.ord.last - c(F, F, T, T, F, T, T, T, T)
Thanks for any help
Axel.
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