ggm (version 2.2)

adjMatrix: Adjacency matrix of a graph

Description

Transforms the ``edge matrix'' of a graph into the adjacency matrix.

Usage

adjMatrix(A)

Arguments

A

a square matrix representing the edge matrix of a graph.

Value

• E
  the adjacency matrix of the graph.

Details

Given the edge matrix $A$ of a graph, this can be transformed into an adjacency matrix $E$ with the formula $E = (A-I)^T$.

See Also

edgematrix

Examples

amat <- DAG(y ~ x+z, z~u+v)
E <- edgematrix(amat)
adjMatrix(E)