Update app.py

app.py

@@ -22,7 +22,7 @@ def plot_reduced_data(reduced_data, labels, title):
     plt.figure(figsize=(10, 8))
     plt.scatter(reduced_data[:, 0], reduced_data[:, 1], alpha=0.6)
     for i, label in enumerate(labels):
-        plt.annotate(label, (reduced_data[i, 0], reduced_data[i, 1]))
+        plt.annotate(label, (reduced_data[i, 0], reduced_data[i, 1]), size=10)
     plt.title(title)
     # Data for the arrow 1
     start_point = (reduced_data[0, 0], reduced_data[0, 1])  # Starting point of the arrow
@@ -30,15 +30,15 @@ def plot_reduced_data(reduced_data, labels, title):
     
     # Adding an arrow 1
     plt.annotate('', xy=end_point, xytext=start_point,
-                 arrowprops=dict(arrowstyle="->", color='green', lw=2))
+                 arrowprops=dict(arrowstyle="->", color='green', lw=3))
     
     # Data for the arrow 2
-    start_point = (reduced_data[2, 0] + reduced_data[0, 0] - reduced_data[1, 0], reduced_data[2, 1] + reduced_data[0, 1] - reduced_data[1, 1])  # Starting point of the arrow
-    end_point = (reduced_data[2, 0], reduced_data[2, 1])  # Ending point of the arrow
+    end_point = (reduced_data[2, 0] - (reduced_data[0, 0] - reduced_data[1, 0]), reduced_data[2, 1] - (reduced_data[0, 1] - reduced_data[1, 1]))  # Starting point of the arrow
+    start_point = (reduced_data[2, 0], reduced_data[2, 1])  # Ending point of the arrow
     
     # Adding an arrow 2
     plt.annotate('', xy=end_point, xytext=start_point,
-                 arrowprops=dict(arrowstyle="->", color='green', lw=2))  
+                 arrowprops=dict(arrowstyle="->", color='green', lw=3))  
     
     plt.xlabel('Component 1')
     plt.ylabel('Component 2')