adding comment to discuss later

dtree_synth.py

@@ -113,7 +113,9 @@ def load_partitioned_examples(file_name: str, teacher: Teacher, partition) \
                 continue
             if np.any(np.isnan(s)):
                 ret[part][2] += 1
-            elif teacher.is_positive_example(s):
+            #TODO note, isin't variable _ being passed to is_positive.
+            # isint _ ground truth for each s in ss?
+            elif teacher.is_positive_example(s): 
                 ret[part][0].append(s)
             else:
                 ret[part][1].append(s)