[R] Intersection of more than two groups in one function?

[Liaw, Andy]

Here's a brute-force approach:

> "%i%" <- intersect
> x1 <- c(1, 3, 4, 7)
> x2 <- c(3, 7, 8)
> x3 <- c(7, 1)
> x1 %i% x2 %i% x3
[1] 7

Andy

> From: Ken Termiso
> 
> Hi all,
> 
> As far as I can tell, the only canned way to do an intersect 
> between two 
> vectors of ints is the intersect(vec1, vec2) function -- is 
> there another 
> function I'm missing for intersecting more than two vectors??
> 
> TIA,
> Ken
> 
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