Update app.py

app.py

@@ -51,7 +51,6 @@ except:
 
 # Streamlit app title and description
 st.title("PAAD Survival Prediction Submission Portal")
-st.write("Upload your predictions for survival time to receive a C-Index score.")
 
 # Form to upload CSV file
 with st.form("submission_form"):
@@ -67,6 +66,9 @@ if submit_button and uploaded_file:
     if "patient_id" in predictions.columns and "predicted_scores" in predictions.columns:
         # Merge with ground truth to calculate C-Index
         merged = pd.merge(ground_truth, predictions, on="patient_id", how="inner")
+        if merged.empty:
+            st.error("No matching patient IDs found between the ground truth and your submission. Please check your patient IDs.")
+        
         c_index = concordance_index(event_times=merged["survival_time"], 
                                     predicted_scores=merged["predicted_scores"], 
                                     event_observed=merged["vital_status"],
@@ -103,4 +105,5 @@ if submit_button and uploaded_file:
 
 # Display the leaderboard
 st.subheader("Leaderboard")
-st.write(leaderboard_df.sort_values(by="C-Index", ascending=False).reset_index(drop=True))
+# st.write(leaderboard_df.sort_values(by="C-Index", ascending=False).reset_index(drop=True))
+st.dataframe(leaderboard_df.sort_values(by="C-Index", ascending=False).reset_index(drop=True), height=400)