randomEGraph {graph} | R Documentation |
A function to create random graphs according to a random edge model.
The user supplies the set of nodes for the graph as V
and a
probability, p
, for an edge existing.
randomEGraph(V, p)
V |
The nodes for the graph. |
p |
The probability of an edge being selected. |
Let nV
denote the
number of nodes. There are choose(nV, 2)
edges in the complete
graph. Conceptually. for each of these a biased coin (probability of
heads being p
) is tossed and if it is heads that edge is
selected.
An object of class graphNEL-class
that contains the nodes and
edges.
R. Gentleman
set.seed(123) V <- letters[14:22] g1 <- randomEGraph(V, .2)