verify_dag: Verify a Directed Acyclic Graph

In GeertPostma/pathmodelr: Generalised Path Modeling Package for R

Description

Verifies whether a given connection matrix is a Directed Acyclic Graph. verify_dag wraps check_dag for a recursive Depth First Search for acyclicity.

Usage

verify_dag(DAG)

Arguments

DAG	A lower triangular matrix where the non zero elements what connections exist. The rows indicate the node where the edge is going to, and the columns indicates the node where the edge is coming from.

Value

A list of lists of errors and warnings respectively that indicate what conditions of the DAG requirements are not met.

Examples

verify_dag(t(matrix(c(0,0,0,0,1,0,0,0,1,0,0,0,0,1,1,0),nrow=4, ncol=4)))

GeertPostma/pathmodelr documentation built on Oct. 5, 2021, 4:17 p.m.