test3

app.py

@@ -26,10 +26,12 @@ def prepare_data_chronos(data):
     formatted_df = formatted_df.sort_values('timestamp')
     
     try:
-        # 指定頻率創建 TimeSeriesDataFrame
-        ts_df = TimeSeriesDataFrame(
+        # 使用 from_data_frame 方法創建 TimeSeriesDataFrame
+        ts_df = TimeSeriesDataFrame.from_data_frame(
             formatted_df,
-            freq="1D"  # 指定為每日數據
+            id_column='item_id',
+            timestamp_column='timestamp',
+            target_column='value'
         )
         return ts_df
     except Exception as e:
@@ -115,10 +117,9 @@ def get_top_10_potential_stocks(period, selected_indices):
                 
             ts_data = prepare_data_chronos(data)
             
-            # 創建預測器時指定頻率
+            # 只在創建預測器時指定頻率
             predictor = TimeSeriesPredictor(
                 prediction_length=prediction_length,
-                target='value',
                 freq="1D"  # 指定為每日數據
             )