[R] shift / rota
David Scott
d.scott at auckland.ac.nz
Thu Mar 9 22:17:07 CET 2006
On Thu, 9 Mar 2006, Omar Lakkis wrote:
> How to do a shift/rotate os a list?
> if
> a = c(1,2,3)
> what is the best way to make a equal
> c(3,1,2)
>
a <- c(a[length(a)],a[-length(a)])
or
n <- length(a)
a <- c(a[n],a[-n])
David Scott
_________________________________________________________________
David Scott Department of Statistics, Tamaki Campus
The University of Auckland, PB 92019
Auckland NEW ZEALAND
Phone: +64 9 373 7599 ext 86830 Fax: +64 9 373 7000
Email: d.scott at auckland.ac.nz
Graduate Officer, Department of Statistics
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