is.igraph {igraph}R Documentation

Is this object a graph?

Description

is.graph makes its decision based on the class attribute of the object.

Usage

is.igraph(graph)

Arguments

graph An R object.

Value

A logical constant, TRUE if argument graph is a graph object.

Author(s)

Gabor Csardi csardi@rmki.kfki.hu

Examples

g <- graph.ring(10)
is.igraph(g)
is.igraph(numeric(10))

[Package igraph version 0.2.1 Index]