Remove duplicate vertices from a vertex sequence

Remove duplicate vertices from a vertex sequence

# S3 method for class 'igraph.vs'
unique(x, incomparables = FALSE, ...)

Arguments

x

A vertex sequence.

incomparables

a vector of values that cannot be compared. Passed to base function duplicated. See details there.

...

Passed to base function duplicated().

Value

A vertex sequence with the duplicate vertices removed.

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(), intersection.igraph.vs(), rev.igraph.es(), rev.igraph.vs(), union.igraph.es(), union.igraph.vs(), unique.igraph.es()

Examples

g <- make_(ring(10), with_vertex_(name = LETTERS[1:10]))
V(g)[1, 1:5, 1:10, 5:10]
#> + 22/10 vertices, named, from 50dbca4:
#>  [1] A A B C D E A B C D E F G H I J E F G H I J
V(g)[1, 1:5, 1:10, 5:10] %>% unique()
#> + 10/10 vertices, named, from 50dbca4:
#>  [1] A B C D E F G H I J