Delete vertices or edges from a graph

## Details

The minus operator (‘`-`

’) can be used to remove vertices
or edges from the graph. The operation performed is selected based on
the type of the right hand side argument:

If it is an igraph graph object, then the difference of the two graphs is calculated, see

`difference()`

.If it is a numeric or character vector, then it is interpreted as a vector of vertex ids and the specified vertices will be deleted from the graph. Example:

If

`e2`

is a vertex sequence (e.g. created by the`V()`

function), then these vertices will be deleted from the graph.If it is an edge sequence (e.g. created by the

`E()`

function), then these edges will be deleted from the graph.If it is an object created with the

`vertex()`

(or the`vertices()`

) function, then all arguments of`vertices()`

are concatenated and the result is interpreted as a vector of vertex ids. These vertices will be removed from the graph.If it is an object created with the

`edge()`

(or the`edges()`

) function, then all arguments of`edges()`

are concatenated and then interpreted as edges to be removed from the graph. Example:If it is an object created with the

`path()`

function, then all`path()`

arguments are concatenated and then interpreted as a path along which edges will be removed from the graph. Example:

## See also

Other functions for manipulating graph structure:
`+.igraph()`

,
`add_edges()`

,
`add_vertices()`

,
`complementer()`

,
`compose()`

,
`connect()`

,
`contract()`

,
`delete_edges()`

,
`delete_vertices()`

,
`difference.igraph()`

,
`difference()`

,
`disjoint_union()`

,
`edge()`

,
`intersection.igraph()`

,
`intersection()`

,
`path()`

,
`permute()`

,
`rep.igraph()`

,
`reverse_edges()`

,
`simplify()`

,
`union.igraph()`

,
`union()`

,
`vertex()`