Update app.py

app.py

@@ -61,21 +61,24 @@ def karate_club_graph():
         # Allow user to input the number of nodes and edges for custom graph
         num_nodes = st.number_input("Number of nodes", min_value=2, value=10)
         num_edges = st.number_input("Number of edges", min_value=1, value=15)
+        seed = st.number_input("Seed for Random Graph (optional)", value=20160)
 
-        # Create random graph with user input
-        G = nx.gnm_random_graph(num_nodes, num_edges)
+        # Generate graph button
+        if st.button("Generate Graph"):
+            # Create random graph with user input
+            G = nx.gnm_random_graph(num_nodes, num_edges, seed=seed)
 
-        # Display node degree
-        st.write("### Node Degree")
-        for v in G:
-            st.write(f"Node {v:4}: Degree = {G.degree(v)}")
+            # Display node degree
+            st.write("### Node Degree")
+            for v in G:
+                st.write(f"Node {v:4}: Degree = {G.degree(v)}")
 
-        # Visualize the graph using circular layout
-        st.write("### Graph Visualization")
-        fig, ax = plt.subplots()
-        nx.draw_circular(G, with_labels=True, ax=ax, node_color="lightgreen", edge_color="gray")
-        ax.set_title("Custom Graph")
-        st.pyplot(fig)
+            # Visualize the graph using circular layout
+            st.write("### Graph Visualization")
+            fig, ax = plt.subplots()
+            nx.draw_circular(G, with_labels=True, ax=ax, node_color="lightgreen", edge_color="gray")
+            ax.set_title("Custom Graph")
+            st.pyplot(fig)
 
 # Display the corresponding page based on sidebar option
 if sidebar_option == "Graph: Karate Club":