LinksOfPM: Links to predation matrices and predation matrices to links
In quicklizard99/Basingstoke: Food-web structural models

Description Usage Arguments Details Value Author(s) Examples

RandomLinks.

1 2	PMOfLinks(links, S) LinksOfPM(matrices)

`links`	a list of `matrices` with columns named ‘resource’ and ‘consumer’ with the values either $0$ and $1$.
`S`	the number of species in the pool from which ‘links’ were drawn
`matrices`	a `list` of square `matrix` objects with the values either $0$ and $1$.

PMOfLinks converts the ‘list of links’ form to 'predation matrix' form, a square matrix with ‘S’ rows and ‘S’ columns.

Either a list of square matrices or a list of matrices with columns named ‘resource’ and ‘consumer’.

Lawrence Hudson

# Generate some links
links <- RandomLinks(n=10, S=10, C=0.15)
links[[1]]

# Get predation matrices
pm <- PMOfLinks(links, 10)
pm[[1]]

# Get lists of links
reconstructed.links <- LinksOfPM(pm)

# Randomly generated links will have an arbitraty order - order by consumer,
# resource for the purposes of comparison
links <- lapply(links, function(l) l[order(l[,'consumer'], l[,'resource']),])

# Should be TRUE
all.equal(links, reconstructed.links)