[R] inverse function of order()

[Adaikalavan Ramasamy]

r[ order(o) ] will give you the answer. More generally,

 x <- rnorm(100)
 identical(x, x[ order(x) ][ order(order(x)) ])
[1] TRUE



On Mon, 2004-10-04 at 15:21, Wolfram Fischer wrote:
> I have:
> 
>  d <- sample(10:100, 9)
>  o <- order(d)
>  r <- d[o]
> 
> How I can get d (in the original order), knowing only r and o?
> 
> Thanks - Wolfram
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
>