Update app.py

app.py

@@ -110,12 +110,32 @@ if binary_file:
     df_binary = pd.read_csv(binary_file, header=None)
     df_binary.columns = [str(i+1) for i in range(df_binary.shape[1])]
 else:
-    st.info("No file uploaded — manually enter binary data below.")
+    st.info("No file uploaded — manually enter or paste your binary data below.")
+    st.caption("💡 Tip: You can copy and paste entire datasets (Ctrl+V) directly here — rows and columns will adjust automatically.")
+
+    # Ask the user how many columns (if they want to define manually)
+    n_cols = st.number_input(
+        "Number of columns (adjust if pasting a dataset)", 
+        min_value=1, value=8, step=1
+    )
+
+    # Create an empty DataFrame with that many columns
+    initial_df = pd.DataFrame(columns=[str(i) for i in range(1, n_cols + 1)])
+
+    # Dynamic editor — allows copy-paste of arbitrary rows
     df_binary = st.data_editor(
-        pd.DataFrame(columns=[str(i) for i in range(1, 20)]),
-        num_rows="dynamic", key="manual_input"
+        initial_df,
+        num_rows="dynamic",
+        key="manual_input",
+        use_container_width=True,
     )
 
+    # If user pastes a larger dataset (more columns than n_cols)
+    # detect and rename automatically
+    if not df_binary.empty:
+        n_detected = df_binary.shape[1]
+        df_binary.columns = [str(i+1) for i in range(n_detected)]
+
 if not df_binary.empty:
     st.subheader("Binary Matrix")
     st.dataframe(df_binary.style.applymap(lambda v: "background-color: lightgreen" if v == 1 else "background-color: lightcoral"))