causaldag.classes.dag.DAG.interventional_cpdag

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

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

>>> import causaldag as cd
>>> g = cd.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)}