Update app.py

app.py

@@ -274,8 +274,9 @@ def calculate_statistics(results, search_time, vector_store, num_tokens, embeddi
     stats = {
         "num_results": len(results),
  #       "avg_content_length": sum(len(doc.page_content) for doc in results) / len(results) if results else 0,
+        "avg_content_length": np.mean([len(doc.page_content) for doc in results]) if results else 0,
 
-        "avg_content_length": np.mean([len(doc.page_content) for doc in results]) if not results.empty else 0,
+        #"avg_content_length": np.mean([len(doc.page_content) for doc in results]) if not results.empty else 0,
         "search_time": search_time,
         "vector_store_size": vector_store._index.ntotal if hasattr(vector_store, '_index') else "N/A",
         "num_documents": len(vector_store.docstore._dict),