graphical_models.classes.dags.dag.DAG.interventional_cpdag

DAG.interventional_cpdag(interventions: List[set], cpdag=None)[source]

Return the interventional essential graph (aka CPDAG) associated with this DAG.

Parameters

interventions – A list of the intervention targets.
cpdag – The original (non-interventional) CPDAG of the graph. Faster when provided.

Returns

Interventional CPDAG representing the I-MEC of this DAG.

Return type

causaldag.PDAG

Examples

>>> from graphical_models import DAG
>>> g = DAG(arcs={(1, 2), (2, 4), (3, 4)})
>>> cpdag = g.cpdag()
>>> icpdag = g.interventional_cpdag([{1}], cpdag=cpdag)
>>> icpdag.arcs
{(1, 2), (2, 4), (3, 4)}