migraph (version 0.9.3)

generate: Create networks from particular probabilities

Description

These functions are similar to the create_* functions, but include some random element. They are particularly useful for creating a distribution of networks for exploring or testing network properties.

Usage

generate_random(n, p = 0.5, directed = FALSE)
generate_smallworld(n, p = 0.05)
generate_scalefree(n, p = 1)
generate_permutation(object, with_attr = TRUE)

Arguments

n

Given:

• A single integer, e.g. n = 10, a one-mode network will be created.

• A vector of two integers, e.g. n = c(5,10), a two-mode network will be created.

• A migraph-compatible object, a network of the same dimensions will be created.

p

Proportion of possible edges in the network that are realised or, if integer greater than 1, the number of edges in the network.

directed

Whether to generate network as directed. By default FALSE.

object

a migraph-consistent object

with_attr

Logical. Whether any attributes of the object should be retained. By default TRUE.

Functions

• generate_random: Generates a random network with a particular probability.

• generate_smallworld: Generates a small-world structure following the lattice rewiring model.

• generate_scalefree: Generates a scale-free structure following the preferential attachment model.

• generate_permutation: Generates a permutation of the original network using a Fisher-Yates shuffle on both the rows and columns (for a one-mode network) or on each of the rows and columns (for a two-mode network).

See Also

Other creation: create

Examples

# NOT RUN {
autographr(generate_random(12, 0.4)) +
autographr(generate_random(c(6, 6), 0.4))
autographr(generate_smallworld(12, 0.025)) +
autographr(generate_smallworld(12, 0.25))
autographr(generate_scalefree(12, 0.25)) +
autographr(generate_scalefree(12, 1.25))
autographr(mpn_elite_usa_advice) +
autographr(generate_permutation(mpn_elite_usa_advice))
# }