causaldag.classes.dag.DAG.is_imap¶

DAG.is_imap(other) → bool[source]¶

Check if this DAG is an IMAP of the DAG other, i.e., all d-separation statements in this graph are also d-separation statements in other.

Parameters:	other – Another DAG.

See also

is_minimal_imap()

Returns:	True if `other` is an I-MAP of this DAG, otherwise False.
Return type:	bool

Examples

>>> import causaldag as cd
>>> g = cd.DAG(arcs={(1, 2), (3, 2)})
>>> other = cd.DAG(arcs={(1, 2)})
>>> g.is_imap(other)
True
>>> other = cd.DAG(arcs={(1, 2), (2, 3)})
>>> g.is_imap(other)
False