update app.py

app.py

@@ -220,23 +220,28 @@ if file_upload:
                     result = calculate_custom_formula(image, roi, custom_formula)
 
                 if result:
+                    # Extract just the numeric value, not the dictionary with 'NDVI' label
                     calculated_value = result.getInfo()
-                    st.write(f"Result for {location_name}: {calculated_value}")
+                    # Display the result as a numeric value, not as a dictionary
+                    st.write(f"Result for {location_name}: {calculated_value['NDVI'] if 'NDVI' in calculated_value else calculated_value}")
 
                     # Store the result in session state
                     st.session_state.results.append({
                         'Location Name': location_name,
                         'Latitude': latitude,
                         'Longitude': longitude,
-                        'Calculated Value': calculated_value  # Store only the numeric value
+                        'Calculated Value': calculated_value['NDVI'] if 'NDVI' in calculated_value else calculated_value  # Only store the numeric value
                     })
 
+     # Generate the dynamic filename
+    filename = f"{main_selection}_{sub_selection}_{start_date.strftime('%Y/%m/%d')}_{end_date.strftime('%Y/%m/%d')}_{shape_type}.csv"
+
     # Convert results to DataFrame for download
     if st.session_state.results:
         result_df = pd.DataFrame(st.session_state.results)
         st.download_button(
             label="Download results as CSV",
             data=result_df.to_csv(index=False).encode('utf-8'),
-            file_name='calculated_index_result.csv',
+            file_name=filename,
             mime='text/csv'
         )