[R] Position in a vector of the last value > n

[Henrique Dallazuanna]

Try this:

v[max(which(v > 20))]

On Thu, Jul 10, 2008 at 9:41 AM, Thaden, John J <ThadenJohnJ at uams.edu> wrote:
> This shouldn't be hard, but it's just not
> coming to me:
> Given a vector, e.g.,
> v <- c(20, 134, 45, 20, 24, 500, 20, 20, 20)
> how can I get the index of the last value in
> the vector having a value greater than n, in
> this case, greater than 20?  I'm looking for
> an efficient function I can use on very large
> matrices, as the FUN argument in the apply()
> command.
>
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-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O