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permute

Permute the vertices of a graph


Description

Create a new graph, by permuting vertex ids.

Usage

permute(graph, permutation)

Arguments

graph

The input graph, it can directed or undirected.

permutation

A numeric vector giving the permutation to apply. The first element is the new id of vertex 1, etc. Every number between one and vcount(graph) must appear exactly once.

Details

This function creates a new graph from the input graph by permuting its vertices according to the specified mapping. Call this function with the output of canonical_permutation to create the canonical form of a graph.

permute keeps all graph, vertex and edge attributes of the graph.

Value

A new graph object.

Author(s)

See Also

Examples

# Random permutation of a random graph
g <- sample_gnm(20, 50)
g2 <- permute(g, sample(vcount(g)))
graph.isomorphic(g, g2)

# Permutation keeps all attributes
g$name <- "Random graph, Gnm, 20, 50"
V(g)$name <- letters[1:vcount(g)]
E(g)$weight <- sample(1:5, ecount(g), replace=TRUE)
g2 <- permute(g, sample(vcount(g)))
graph.isomorphic(g, g2)
g2$name
V(g2)$name
E(g2)$weight
all(sort(E(g2)$weight) == sort(E(g)$weight))

igraph

Network Analysis and Visualization

v1.2.10
GPL (>= 2)
Authors
See AUTHORS file.
Initial release

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