Fix predict_proba_spode mistake

src/experimental_clfs/Xaode.hpp

@@ -303,8 +303,8 @@ namespace platform {
                 }
             }
             // Normalize the probabilities
-            normalize(probs);
-            return probs;
+            normalize(spodeProbs);
+            return spodeProbs;
         }
         int predict_spode(const std::vector<int>& instance, int parent)
         {