Update app.py

app.py

@@ -268,6 +268,48 @@ with tab2:
                 st.info("💡 Insight: Weather conditions appear stable. The forecast is primarily driven by seasonal trends and recent temperature history.")
             # --- KẾT THÚC NÂNG CẤP ---
 
+            # --- NÂNG CẤP MỚI: Thêm "Feature Inspector" ---
+            st.markdown("---") # Thêm đường kẻ ngang
+            
+            with st.expander("🔍 Feature Inspector: What the Model Saw on this Day"):
+
+                if not input_features.empty:
+                    # Chúng ta sẽ hiển thị các tính năng trong các cột có tổ chức
+                    col1, col2, col3 = st.columns(3)
+
+                    # --- Cột 1: Core Weather & Persistence ---
+                    with col1:
+                        st.subheader("Core Conditions")
+                        st.metric(label="Today's Avg Temp (temp)", value=f"{input_features['temp'].iloc[0]:.1f}°C")
+                        st.metric(label="Today's 'Feels Like' (feelslike)", value=f"{input_features['feelslike'].iloc[0]:.1f}°C")
+                        st.metric(label="Humidity", value=f"{input_features['humidity'].iloc[0]:.1f}%")
+                        st.metric(label="Cloud Cover", value=f"{input_features['cloudcover'].iloc[0]:.1f}%")
+                        st.metric(label="Precipitation", value=f"{input_features['precip'].iloc[0]:.1f} mm")
+
+                    # --- Cột 2: Recent History (Lags & Rolling Windows) ---
+                    with col2:
+                        st.subheader("Recent History")
+                        st.metric(label="Temp Yesterday (temp_lag_1)", value=f"{input_features['temp_lag_1'].iloc[0]:.1f}°C")
+                        st.metric(label="7-Day Avg Temp (temp_roll_7d_mean)", value=f"{input_features['temp_roll_7d_mean'].iloc[0]:.1f}°C")
+                        
+                        # --- ĐÃ SỬA LỖI ---
+                        # Thay thế 'precip_roll_7d_sum' (không tồn tại) bằng 'precip_roll_7d_mean' (tồn tại)
+                        st.metric(label="7-Day Avg Rainfall (precip_roll_7d_mean)", value=f"{input_features['precip_roll_7d_mean'].iloc[0]:.1f} mm")
+                        
+                        st.metric(label="14-Day Temp Volatility (temp_roll_14d_std)", value=f"{input_features['temp_roll_14d_std'].iloc[0]:.2f}°C")
+
+                    # --- Cột 3: Seasonal & Atmospheric Context ---
+                    with col3:
+                        st.subheader("Seasonal Context")
+                        st.metric(label="Day of Year", value=f"{input_features['day_of_year'].iloc[0]}")
+                        st.metric(label="Sea Level Pressure", value=f"{input_features['sealevelpressure'].iloc[0]:.1f} hPa")
+                        st.metric(label="Wind Speed", value=f"{input_features['windspeed'].iloc[0]:.1f} km/h")
+                        st.metric(label="Wind Direction", value=f"{input_features['winddir'].iloc[0]:.0f}°")
+
+                else:
+                    st.warning("No feature data available for the selected date.")
+            # --- KẾT THÚC NÂNG CẤP "Feature Inspector" ---
+
             # --- BIỂU ĐỒ DỮ LIỆU TRAINING ---
             st.subheader("Training Set Overview")
             with st.expander("Show plot of all training data (before 2024-02-18)"):