Intersection of vertex sequences

Intersection of vertex sequences

# S3 method for class 'igraph.vs'
intersection(...)

Arguments

...

The vertex sequences to take the intersection of.

Value

A vertex sequence that contains vertices that appear in all given sequences, each vertex exactly once.

Details

They must belong to the same graph. Note that this function has ‘set’ semantics and the multiplicity of vertices is lost in the result.

See also

Other vertex and edge sequence operations: c.igraph.es(), c.igraph.vs(), difference.igraph.es(), difference.igraph.vs(), igraph-es-indexing, igraph-es-indexing2, igraph-vs-indexing, igraph-vs-indexing2, intersection.igraph.es(), rev.igraph.es(), rev.igraph.vs(), union.igraph.es(), union.igraph.vs(), unique.igraph.es(), unique.igraph.vs()

Examples

g <- make_(ring(10), with_vertex_(name = LETTERS[1:10]))
intersection(E(g)[1:6], E(g)[5:9])
#> + 2/10 edges from 0256ef3 (vertex names):
#> [1] E--F F--G