[R] dataframe without repetition

[Chuck Cleland]

?unique

 > unique(toto)
    id dpt
1 id1  13
3 id2  34
4 id3  30

Bruno Cutayar wrote:
> 
> Hello,
> with a data.frame like this :
>  > toto <- 
> data.frame(id=c("id1","id1","id2","id3","id3","id3"),dpt=c("13","13","34","30","30","30"))
>  > toto
>    id dpt
> 1 id1  13
> 2 id1  13
> 3 id2  34
> 4 id3  30
> 5 id3  30
> 6 id3  30
> 
> what is the most efficient ways to obtain :
>    id dpt
> 1 id1  13
> 2 id2  34
> 3 id3  30
> ?
> thanks in advance for your reply
> Bruno
> 
> 
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Chuck Cleland, Ph.D.
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