graphical_models.classes.dags.dag.DAG.permutation_score
- DAG.permutation_score(order: list) int [source]
Return the number of “errors” in
order
with respect to the DAG, i.e., the number of times thati
->``j`` in the DAG buti
comes afterj
inorder
.- Parameters
order – the order to check.
Examples
>>> from graphical_models import DAG >>> g = DAG(arcs={(1, 2), (1, 3)}) >>> g.permutation_score([1, 2, 3]) 0 >>> g.permutation_score([2, 1, 3]) 1 >>> g.permutation_score([2, 3, 1]) 2