[R] intersection on more than two sets

[jim holtman]

?Reduce

> x <- function(z) Reduce('union', z)
> x(list(1:3, 4:6))
[1] 1 2 3 4 5 6
> x(list(1:3, 4:6, 3:7))
[1] 1 2 3 4 5 6 7
> x <- function(z) Reduce('intersect', z)
> x(list(1:3, 4:6, 3:7))
integer(0)
> x(list(1:3, 2:6, 3:7))
[1] 3


On Thu, Jun 3, 2010 at 3:59 AM, amir <amir at ac.upc.edu> wrote:
> Hi,
>
> I want to do an intersection or union on more than two sets.
> Is there any command to do this?
>
> Regards,
> Amir
>
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>



-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?