upgraded stock market simulator

app.py

@@ -116,14 +116,18 @@ else:
     fig.add_trace(go.Bar(x=df['Date'], y=df['Volume'][ticker_symbol], name='Volume'))
     fig.update_layout(title="Volume Analysis", xaxis_title="Date", yaxis_title="Volume")
     st.plotly_chart(fig)
+    
+    from langchain.document_loaders import DataFrameLoader
 
-    loader = []
-    index = VectorstoreIndexCreator(
-            embedding=GooglePalmEmbeddings(),
-            text_splitter=CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)).from_loaders(loader)
+    loader = DataFrameLoader(df)
+    index = VectorstoreIndexCreator(embedding=GooglePalmEmbeddings()).from_loaders([loader])
+    # index = VectorstoreIndexCreator(
+    #         embedding=GooglePalmEmbeddings(),
+    #         text_splitter=CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)).from_loaders(loader)
     chain = RetrievalQA.from_chain_type(llm=llm,
                             chain_type="stuff",
                             retriever=index.vectorstore.as_retriever(),
+                            
                             input_key="question")
 
     # Additional Insights