跟特征数量没关系

freqtrade/templates/FreqaiExampleStrategy.py

@@ -144,10 +144,12 @@ class FreqaiExampleStrategy(IStrategy):
             label_period = self.freqai_info["feature_parameters"]["label_period_candles"]
 
             # 生成更复杂的目标变量 up_or_down
-        # Ensure the target variable is reshaped correctly
             dataframe["up_or_down"] = np.where(
                 dataframe["close"].shift(-label_period) > dataframe["close"], 1, 0
-            ).reshape(-1, 1)  # Reshape to 2D array
+            )
+            # 确保目标变量是二维数组
+            if dataframe["up_or_down"].ndim == 1:
+                dataframe["up_or_down"] = dataframe["up_or_down"].values.reshape(-1, 1)
 
             # 生成 %-volatility 特征
             dataframe["%-volatility"] = dataframe["close"].pct_change().rolling(20).std()