Update app.py

app.py

@@ -21,7 +21,10 @@ merge = st.checkbox("Merge US country with State ?")
 
 all_region = st.checkbox("Take all Region ?", value=True)
 all_country = st.checkbox("Take all Country ?", value=True)
-all_state = st.checkbox("Take all State ?", value=True)
+
+if merge == False:
+    all_state = st.checkbox("Take all State ?", value=True)
+
 all_city = st.checkbox("Take all City ?", value=True)
 
 df = pd.read_csv("city_temperature.csv")