diff --git a/gtsam/discrete/DiscreteFactor.h b/gtsam/discrete/DiscreteFactor.h
index 70545a5ca..e30c0a6fe 100644
--- a/gtsam/discrete/DiscreteFactor.h
+++ b/gtsam/discrete/DiscreteFactor.h
@@ -89,8 +89,10 @@ public:
   /// @name Wrapper support
   /// @{
   
+  /// Translation table from values to strings.
   using Names = std::map<Key, std::vector<std::string>>;
 
+  /// Translate an integer index value for given key to a string.
   static std::string Translate(const Names& names, Key key, size_t index);
 
   /**
diff --git a/gtsam/discrete/tests/testDiscreteBayesNet.cpp b/gtsam/discrete/tests/testDiscreteBayesNet.cpp
index de8e05edc..251978c99 100644
--- a/gtsam/discrete/tests/testDiscreteBayesNet.cpp
+++ b/gtsam/discrete/tests/testDiscreteBayesNet.cpp
@@ -193,7 +193,6 @@ TEST(DiscreteBayesNet, markdown) {
       "|1|0.7|0.3|\n\n";
   auto formatter = [](Key key) { return key == 0 ? "Asia" : "Smoking"; };
   string actual = fragment.markdown(formatter);
-  cout << actual << endl;
   EXPECT(actual == expected);
 }