update app.py, add choice button for VisionTSpp base and large

app.py

@@ -225,7 +225,7 @@ def visual_ts_with_quantiles(true_data, pred_median, pred_quantiles_list, model_
         print(pred_median[:, i].shape)
         print(pred_range.shape)
 
-        pred_median_visual = true_data[context_len-1:context_len, i] + pred_median[:, i]
+        pred_median_visual = np.concatenate([true_data[context_len-1:context_len, i], pred_median[:, i]])
         print(pred_median_visual.shape)
 
         ax.plot(pred_range, pred_median_visual, label='Prediction (Median)', color='red', linewidth=1.5)
@@ -233,8 +233,8 @@ def visual_ts_with_quantiles(true_data, pred_median, pred_quantiles_list, model_
 
         for j in range(num_bands):
             lower_quantile_pred, upper_quantile_pred = quantile_preds[j][:, i], quantile_preds[-(j+1)][:, i]
-            lower_quantile_pred_visual = true_data[context_len-1:context_len, i] + lower_quantile_pred
-            upper_quantile_pred_visual = true_data[context_len-1:context_len, i] + upper_quantile_pred
+            lower_quantile_pred_visual = np.concatenate([true_data[context_len-1:context_len, i], lower_quantile_pred])
+            upper_quantile_pred_visual = np.concatenate([true_data[context_len-1:context_len, i], upper_quantile_pred])
 
             print(lower_quantile_pred.shape)
             print(upper_quantile_pred.shape)