# igraph-vs-indexing2

##### Select vertices and show their metadata

The double bracket operator can be used on vertex sequences, to print the meta-data (vertex attributes) of the vertices in the sequence.

##### Usage

```
# S3 method for igraph.vs
[[(x, ...)
```

##### Arguments

- x
A vertex sequence.

- ...
Additional arguments, passed to

`[`

.

##### Details

Technically, when used with vertex sequences, the double bracket operator does exactly the same as the single bracket operator, but the resulting vertex sequence is printed differently: all attributes of the vertices in the sequence are printed as well.

See `[.igraph.vs`

for more about indexing vertex sequences.

##### Value

The double bracket operator returns another vertex sequence, with meta-data (attribute) printing turned on. See details below.

##### See Also

Other vertex and edge sequence operations: `[.igraph.es`

,
`%--%`

, `%->%`

,
`%<-%`

, `igraph-es-indexing`

;
`[.igraph.vs`

,
`igraph-vs-indexing`

;
`[[.igraph.es`

,
`igraph-es-indexing2`

;
`c.igraph.es`

; `c.igraph.vs`

;
`difference.igraph.es`

;
`difference.igraph.vs`

;
`intersection.igraph.es`

;
`intersection.igraph.vs`

;
`rev.igraph.es`

; `rev.igraph.vs`

;
`union.igraph.es`

;
`union.igraph.vs`

;
`unique.igraph.es`

;
`unique.igraph.vs`

Other vertex and edge sequences: `$.igraph.es`

,
`$<-.igraph.es`

, `E<-`

,
`[<-.igraph.es`

,
`[[<-.igraph.es`

,
`igraph-es-attributes`

,
`igraph-es-attributes`

,
`igraph-es-attributes`

,
`igraph-es-attributes`

,
`igraph-es-attributes`

;
`$.igraph.vs`

, `$<-.igraph.vs`

,
`V<-`

, `[<-.igraph.vs`

,
`[[<-.igraph.vs`

,
`igraph-vs-attributes`

,
`igraph-vs-attributes`

,
`igraph-vs-attributes`

,
`igraph-vs-attributes`

,
`igraph-vs-attributes`

; `E`

;
`V`

; `[.igraph.es`

,
`%--%`

, `%->%`

,
`%<-%`

, `igraph-es-indexing`

;
`[.igraph.vs`

,
`igraph-vs-indexing`

;
`[[.igraph.es`

,
`igraph-es-indexing2`

;
`print.igraph.es`

;
`print.igraph.vs`

##### Examples

```
# NOT RUN {
g <- make_ring(10) %>%
set_vertex_attr("color", value = "red") %>%
set_vertex_attr("name", value = LETTERS[1:10])
V(g)
V(g)[[]]
V(g)[1:5]
V(g)[[1:5]]
# }
```

*Documentation reproduced from package igraph, version 1.0.1, License: GPL (>= 2)*