Merge pull request #1773 from cmu-phil/vbc-05-21

Update getLocalIndependenceFacts to check on independence

tetrad-lib/src/main/java/edu/cmu/tetrad/search/MarkovCheck.java

@@ -231,7 +231,7 @@ public List<IndependenceFact> getLocalIndependenceFacts(Node x) {
             // Make a new MsepTest based on the true graph.
             MsepTest msepTest = new MsepTest(graph);
             IndependenceResult testRes = msepTest.checkIndependence(x, y, parents);
-            if (testRes.isValid()) factList.add(testRes.getFact());
+            if (testRes.isIndependent()) factList.add(testRes.getFact());
         }
         return factList;
     }