private void addColliders(
Graph graph, final SepsetProducer sepsetProducer, IKnowledge knowledge) {
final Map<Triple, Double> collidersPs =
findCollidersUsingSepsets(sepsetProducer, graph, verbose, knowledge);
List<Triple> colliders = new ArrayList<>(collidersPs.keySet());
Collections.shuffle(colliders);
Collections.sort(
colliders,
new Comparator<Triple>() {
public int compare(Triple o1, Triple o2) {
return -Double.compare(collidersPs.get(o1), collidersPs.get(o2));
}
});
if (trueDag != null) {
for (Triple collider : colliders) {
Node a = collider.getX();
Node b = collider.getY();
Node c = collider.getZ();
List<Node> sep = trueDag.getSepset(a, c);
System.out.println(
"JJJ "
+ collider
+ " collider = "
+ (sep != null && !sep.contains(b))
+ " p = "
+ collidersPs.get(collider));
}
}
for (Triple collider : colliders) {
Node a = collider.getX();
Node b = collider.getY();
Node c = collider.getZ();
if (!(isArrowpointAllowed(a, b, knowledge) && isArrowpointAllowed(c, b, knowledge))) {
continue;
}
if (!graph.getEdge(a, b).pointsTowards(a) && !graph.getEdge(b, c).pointsTowards(c)) {
graph.setEndpoint(a, b, Endpoint.ARROW);
graph.setEndpoint(c, b, Endpoint.ARROW);
}
}
}
