Generate Random Graph with Specified Degree Distribution
randomNodeGraph generates a random graph with the specified
degree distribution. Self-loops are allowed. The resultant graph is
directed (but can always be coerced to be undirected).
randomNodeGraph(nodeDegree)
nodeDegree |
A named integer vector specifying the node degrees. |
The input vector must be named, the names are taken to be the names of the nodes. The sum must be even (there is a theorem that says we require that to construct a graph). Self-loops are allowed, although patches to the code that make this a switchable parameter would be welcome.
An instance of the graphNEL class. The graph is directed.
R. Gentleman
Random Graphs as Models of Networks, M. E. J. Newman.
set.seed(123) c1 <- c(a = 1, b = 1, c = 2, d = 4) (g1 <- randomNodeGraph(c1)) stopifnot(validObject(g1))
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