Merge pull request udacity#342 from DavidMachineLearning/patch-2

Fix on issue udacity#340

projects/finding_donors/visuals.py

@@ -60,7 +60,7 @@ def evaluate(results, accuracy, f1):
     """
 
     # Create figure
-    fig, ax = pl.subplots(2, 3, figsize = (11,7))
+    fig, ax = pl.subplots(2, 4, figsize = (11,7))
 
     # Constants
     bar_width = 0.3
@@ -106,12 +106,14 @@ def evaluate(results, accuracy, f1):
     ax[1, 1].set_ylim((0, 1))
     ax[1, 2].set_ylim((0, 1))
 
-    # Create patches for the legend
-    patches = []
+    # Set additional plots invisibles
+    ax[0, 3].set_visible(False)
+    ax[1, 3].axis('off')
+
+    # Create legend
     for i, learner in enumerate(results.keys()):
-        patches.append(mpatches.Patch(color = colors[i], label = learner))
-    pl.legend(handles = patches, bbox_to_anchor = (-.80, 2.53), \
-               loc = 'upper center', borderaxespad = 0., ncol = 3, fontsize = 'x-large')
+        pl.bar(0, 0, color=colors[i], label=learner)
+    pl.legend()
 
     # Aesthetics
     pl.suptitle("Performance Metrics for Three Supervised Learning Models", fontsize = 16, y = 1.10)