[R] Odp: Is there a function to test if all the elements in a vector are unique

[Petr PIKAL]

Hi


r-help-bounces at r-project.org napsal dne 01.12.2009 04:42:31:

> length(unique(c(1,2,2)))==length(c(1,2,2))
> 
> I use the above test to test if all the elements in a vector are
> unique. But I'm wondering if there is a convenient function to do so
> in R library.

maybe
any(duplicated(c(1,2,2)))

Regards
Petr

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