Set operations on list of sets in R using sets package

Question

I am using sets package in R. Now, i have a list of sets and I want to perform set operations on the list without having to loop. Like, I can do set_intersection with a variable number of arguments

set_intersection(set(1,2), set(2,3), set(4,5), set(5,6)..)

But what if I have a list like

ls = list(set(1,2), set(2,3), set(4,5), set(5,6))

How do I take intersection of all sets contained in ls? Tried to google it but can't find much.

Try `Reduce(set_intersection, ls)` – akrun Jan 08 '19 at 08:20 — akrun, Jan 08 '19 at 08:20

score 3 · Accepted Answer · answered Jan 08 '19 at 08:21

3

We can use Reduce with set_intersection

library(sets)
Reduce(set_intersection, ls)

or with do.call

do.call(set_intersection, ls)

NOTE: It is better not to name objects with function names (ls is a function)

answered Jan 08 '19 at 08:21

akrun

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Set operations on list of sets in R using sets package

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