is_admg: Is the 'caugi' graph an ADMG?

In caugi: Causal Graph Interface

Is the caugi graph an ADMG?

Description

Checks if the given caugi graph is an Acyclic Directed Mixed Graph (ADMG).

An ADMG contains only directed (⁠-->⁠) and bidirected (⁠<->⁠) edges, and the directed part must be acyclic.

Usage

is_admg(cg, force_check = FALSE)

Arguments

cg	A caugi object.
force_check	Logical; if TRUE, the function will test if the graph is an ADMG, if FALSE (default), it will look at the graph class and match it, if possible.

Value

A logical value indicating whether the graph is an ADMG.

See Also

Other queries: ancestors(), anteriors(), children(), components(), descendants(), districts(), edge_types(), edges(), exogenous(), is_acyclic(), is_ag(), is_caugi(), is_cpdag(), is_dag(), is_empty_caugi(), is_mag(), is_mpdag(), is_pdag(), is_simple(), is_ug(), m_separated(), markov_blanket(), neighbors(), nodes(), parents(), posteriors(), same_nodes(), spouses(), subgraph(), topological_sort()

Examples

cg_admg <- caugi(
  A %-->% B,
  A %<->% C,
  class = "ADMG"
)
is_admg(cg_admg) # TRUE

cg_dag <- caugi(
  A %-->% B,
  class = "DAG"
)
is_admg(cg_dag) # TRUE (DAGs are valid ADMGs)

caugi documentation built on Oct. 28, 2026, 1:07 a.m.