[R] Replicate

[Jim Porzak]

Hi Marc,

> x = c(1,1,1,2,2,2,3,3,3,3)
> unique(x)
[1] 1 2 3
>

Being a database guy myself, it took me a while to think "unique"
rather than "distinct"

-- 
HTH,
Jim Porzak
Loyalty Matrix Inc.
San Francisco, CA


On 9/16/05, Marc Bernard <bernarduse1 at yahoo.fr> wrote:
> Dear All,
> 
> I have a vector x = (1,1,1,2,2,2,3,3,3,3)
> I am looking for a function to return a vector containing  the distinct elements of x i,e y = (1,2,3)
> 
> The following code gives the desired results:
> 
> as.numeric(levels(as.factor(x)))
> 
> Is there any other elegant  way?
> 
> Thanks,
> 
> B
> 
> 
> 
> 
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