| complementer {igraph} | R Documentation |
Complementer of a graph
Description
A complementer graph contains all edges that were not present in the input graph.
Usage
complementer(graph, loops = FALSE)
Arguments
graph |
The input graph, can be directed or undirected. |
loops |
Logical constant, whether to generate loop edges. |
Details
complementer() creates the complementer of a graph. Only edges
which are not present in the original graph will be included in the
new graph.
complementer() keeps graph and vertex attriubutes, edge
attributes are lost.
Value
A new graph object.
Author(s)
Gabor Csardi csardi.gabor@gmail.com
See Also
Other functions for manipulating graph structure:
+.igraph(),
add_edges(),
add_vertices(),
compose(),
connect(),
contract(),
delete_edges(),
delete_vertices(),
difference(),
difference.igraph(),
disjoint_union(),
edge(),
igraph-minus,
intersection(),
intersection.igraph(),
path(),
permute(),
rep.igraph(),
reverse_edges(),
simplify(),
union(),
union.igraph(),
vertex()
Examples
## Complementer of a ring
g <- make_ring(10)
complementer(g)
## A graph and its complementer give together the full graph
g <- make_ring(10)
gc <- complementer(g)
gu <- union(g, gc)
gu
graph.isomorphic(gu, make_full_graph(vcount(g)))