erdos.renyi.game {igraph} | R Documentation |
This model is very simple, every possible edge is created with the same constant probability.
erdos.renyi.game(
n,
p.or.m,
type = c("gnp", "gnm"),
directed = FALSE,
loops = FALSE
)
n |
The number of vertices in the graph. |
p.or.m |
Either the probability for drawing an edge between two arbitrary vertices (G(n,p) graph), or the number of edges in the graph (for G(n,m) graphs). |
type |
The type of the random graph to create, either |
directed |
Logical, whether the graph will be directed, defaults to FALSE. |
loops |
Logical, whether to add loop edges, defaults to FALSE. |
In G(n,p) graphs, the graph has ‘n’ vertices and for each edge the probability that it is present in the graph is ‘p’.
In G(n,m) graphs, the graph has ‘n’ vertices and ‘m’ edges,
and the ‘m’ edges are chosen uniformly randomly from the set of all
possible edges. This set includes loop edges as well if the loops
parameter is TRUE.
random.graph.game
is an alias to this function.
A graph object.
Since igraph version 0.8.0, both erdos.renyi.game
and
random.graph.game
are deprecated, and sample_gnp
and
sample_gnm
should be used instead.
Gabor Csardi csardi.gabor@gmail.com
Erdos, P. and Renyi, A., On random graphs, Publicationes Mathematicae 6, 290–297 (1959).
g <- erdos.renyi.game(1000, 1/1000)
degree_distribution(g)