adjMatrix: Adjacency matrix of a graph
In ggm: Graphical Markov Models with Mixed Graphs

Description Usage Arguments Details Value Author(s) See Also Examples

Transforms the “edge matrix” of a graph into the adjacency matrix.

1	adjMatrix(A)

`A`	a square matrix representing the edge matrix of a graph.

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

`E`	the adjacency matrix of the graph.

Giovanni M. Marchetti

edgematrix

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

Loading required package: igraph

Attaching package: 'igraph'

The following objects are masked from 'package:stats':

    decompose, spectrum

The following object is masked from 'package:base':

    union


Attaching package: 'ggm'

The following object is masked from 'package:igraph':

    pa

  y x z u v
y 0 0 0 0 0
x 1 0 0 0 0
z 1 0 0 0 0
u 0 0 1 0 0
v 0 0 1 0 0