COSMIT: prettify plot_oneclass

It's on the front page: it must give a pretty picture :)

examples/svm/plot_oneclass.py

@@ -32,6 +32,9 @@ pl.set_cmap(pl.cm.Paired)
 pl.contourf(xx, yy, Z)
 pl.scatter(X[y_pred>0,0], X[y_pred>0,1], c='white', label='inliers')
 pl.scatter(X[y_pred<=0,0], X[y_pred<=0,1], c='black', label='outliers')
-pl.axis('tight')
+pl.xlim(xx.min(), xx.max())
+pl.ylim(yy.min(), yy.max())
+pl.xticks(())
+pl.yticks(())
 pl.legend()
 pl.show()