[R] unique() duplicate() not what i am looking for

[Rui Barradas]

Hello,

Try

i <- !(duplicated(Dup) | duplicated(Dup, fromLast = TRUE))
Dup[i]


or in one line, I post it like this to make it more clear.

Hope this helps,

Rui Barradas

Às 14:41 de 19/11/2018, Knut Krueger escreveu:
> It should be simple but i do not find the right keywords:
> 
> 
> Dup =  c(1,2,3,4,1,2,3,5)
> 
> I need 4,5 as result
> 
> unique(Dup) gives me [1] 4 1 2 3 5
> 
> duplicated(Dup) gives me
> [1] FALSE FALSE FALSE FALSE  TRUE  TRUE  TRUE FALSE
> 
> I need
> [1] TRUE TRUE TRUE FALSE  TRUE  TRUE  TRUE FALSE
> 
> 
> Kind regards Knut
> 
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