Merge pull request scikit-learn#4853 from amueller/fix_ica_pca_example

[MRG] DOC remove linewidth in pca/ica example

Author: jnothman

examples/decomposition/plot_ica_vs_pca.py

@@ -61,7 +61,7 @@
 # Plot results
 
 def plot_samples(S, axis_list=None):
-    plt.scatter(S[:, 0], S[:, 1], s=2, marker='o', linewidths=0, zorder=10,
+    plt.scatter(S[:, 0], S[:, 1], s=2, marker='o', zorder=10,
                 color='steelblue', alpha=0.5)
     if axis_list is not None:
         colors = ['orange', 'red']