[R] delete repeated values - not unique...

[David Winsemius]

On Feb 16, 2010, at 12:01 PM, jorgusch wrote:

>
> Hello,
>
> I must be blind not to see it, but I have the following vector:
>
> 4
> 4
> 5
> 6
> 6
> 4
>
> What I would like to have as a result is:
>
> 4
> 5
> 6
> 4
>

?diff

 > vec <- c(4,4,5,6,6,4)
 > vec[ c(1, diff(vec)) != 0 ]
[1] 4 5 6 4


> All repeated values are gone. I cannot use unique for this, as the  
> second 4
> would disappear. Is there another fast function for this problem?
>
> Thanks in advance!
>
> -- 
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>
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT