Update app.py

app.py

@@ -14,15 +14,18 @@ num_dots = st.number_input('Number of dots', min_value=1, max_value=10, value=5)
 chart_placeholder = st.empty()
 
 while True:  # This loop will simulate real-time data updates
-    # Initialize an empty DataFrame for the new data points
-    new_data = pd.DataFrame(columns=['x', 'y'])
+    # Create a list to hold the new data points
+    new_data_points = []
     
     # Generate random x and y positions within the specified radius for the specified number of dots
     for _ in range(num_dots):
         new_x = random.uniform(-radius, radius)
         new_y = random.uniform(-radius, radius)
-        # Append the new data point to the DataFrame
-        new_data = new_data.append({'x': new_x, 'y': new_y}, ignore_index=True)
+        # Append the new data point as a dictionary to the list
+        new_data_points.append({'x': new_x, 'y': new_y})
+    
+    # Create a new DataFrame from the list of new data points
+    new_data = pd.DataFrame(new_data_points)
     
     # Create a new Plotly figure for the scatter plot
     fig = px.scatter(new_data, x='x', y='y', title="Random Dots within a Radius")