Update src/streamlit_app.py

src/streamlit_app.py

@@ -270,6 +270,12 @@ fig.update_layout(
 st.plotly_chart(fig, use_container_width=True)
 
 # Prepare source/target/value lists
+tm = (
+    df
+      .groupby(["RegionName","crm_cd_desc"])
+      .size()
+      .reset_index(name="Count")
+)
 grouped = tm.copy()
 regions = list(grouped["RegionName"].unique())
 crimes  = list(grouped["crm_cd_desc"].unique())