Update app.py

app.py

@@ -45,8 +45,8 @@ def main():
     k_value = st.slider("Select k value:", 1, 10)
     
     dataset_mapping = {
-        "교통접근성": (traffic_df, 'o')
-        "자연환경": (nature_df, 'x')
+        "교통접근성": (traffic_df, 'o'),
+        "자연환경": (nature_df, 'x'),
         "인구밀집도": (population_df, '▲')
     }