Update app.py

app.py

@@ -609,7 +609,7 @@ def predict_eurusd():
         ens_test  = np.mean([test_preds[n] for n in test_preds], axis=0)
         ens_mae   = float(np.mean(np.abs(ens_test - y_test)))
         ens_rmse  = float(np.sqrt(np.mean((ens_test - y_test) ** 2)))
-        hit_arr   = np.sign(np.diff(np.append([y_test[0]], ens_test))) == np.sign(np.diff(y_test))
+        hit_arr   = np.sign(ens_test[1:] - ens_test[:-1]) == np.sign(np.diff(y_test))
         hit_rate  = float(np.mean(hit_arr)) * 100
 
         # 8. Teknik durum