induced_submat {ergmito}

Extract a submatrix from a network

Description

This is similar to network::get.inducedSubgraph. The main difference is that the resulting object will always be a list of matrices, and it is vectorized.

Usage

induced_submat(x, v, ...)

Arguments

x

Either a list or single matrices or network objects.

v

Either a list or a single integer vector of vertices to subset.

...

Currently ignored.

Details

Depending on the lengths of x and v, the function can take the following strategies:

• If both are of the same size, then it will match the networks and the vector of indices.

• If length(x) == 1, then it will use that single network as a baseline for generating the subgraphs.

• If length(v) == 1, then it will generate the subgraph using the same set of vertices for each network.

• If both have more than one element, but different sizes, then the function returns with an error.

Value

A list of matrices as a result of the subsetting.

Examples

x <- rbernoulli(100)
induced_submat(x, c(1, 10, 30:50))

x <- rbernoulli(c(20, 20))
induced_submat(x, c(1:10))