[R] Test for list membership

[Henrique Dallazuanna]

Try this:

list(c(1,2,3), c(4,5,6)) %in% list(c(1,2,3))

On Mon, May 30, 2011 at 10:36 AM, Marcin Wlodarczak
<mwlodarczak at uni-bielefeld.de> wrote:
>
> Hi,
>
> I need some help with this one: how do I check whether a vector is
> already present in a list of vectors.
>
> I have seen %in% recommended in a similar case but that obviously does
> not work here.
>
> c(1,2,3) %in% list(c(1,2,3), c(4,5,6))
>
> returns
>
> [1] FALSE FALSE FALSE
>
> which makes sense since 1, 2 or 3 are not elements of that list. I don't
> really know how to move from there though.
>
> Best wishes,
> Marcin
>
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-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O