# simplify

0th

Percentile

##### Simple graphs

Simple graphs are graphs which do not contain loop and multiple edges.

Keywords
graphs
##### Usage
simplify(graph, remove.multiple = TRUE, remove.loops = TRUE)
is.simple(graph)
##### Arguments
graph
The graph to work on.
remove.loops
Logical, whether the loop edges are to be removed.
remove.multiple
Logical, whether the multiple edges are to be removed.
##### Details

A loop edge is an edge for which the two endpoints are the same vertex. Two edges are multiple edges if they have exactly the same two endpoints (for directed graphs order does matter). A graph is simple is it does not contain loop edges and multiple edges.

is.simple checks whether a graph is simple.

simplify removes the loop and/or multiple edges from a graph. If both remove.loops and remove.multiple are TRUE the function returns a simple graph.

##### Value

• A new graph object with the edges deleted.

##### concept

Simple graph

is.loop, is.multiple and count.multiple, delete.edges, delete.vertices

• simplify
• is.simple
##### Examples
g <- graph( c(1,2,1,2,3,3) )
is.simple(g)
is.simple(simplify(g, remove.loops=FALSE))
is.simple(simplify(g, remove.multiple=FALSE))
is.simple(simplify(g))
Documentation reproduced from package igraph, version 0.5.3, License: GPL (>= 2)

### Community examples

Looks like there are no examples yet.