[R] remove multiple elements from vector

[baptiste auguie]

Hi,

?unique should work fine for this.

I think the problem in your implementation is that you modify x in the  
loop, in particular its length may become shorter than the stopping  
condition.

HTH,

baptiste

On 27 Sep 2008, at 14:30, Bastian Offermann wrote:

> Hello all,
>
> one brief question
>
> I would like to remove double/triple elements from a vector, e.g.
>
> 0 1 1 1 1 2 2 2 4 5 6 6
>
> but keep one of these multiple ones. Should look like this finally:
>
> 0 1 2 4 5 6
>
> My function does not work somehow
>
> for(i in 2 : length(x)) {
>                                if(x[i]==x[i-1]) x <- x[-(i-1)]
>                            }
>
> any suggestion? Thanks.
>
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_____________________________

Baptiste Auguié

School of Physics
University of Exeter
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EX4 4QL, UK

Phone: +44 1392 264187

http://newton.ex.ac.uk/research/emag