fixed auto-legend wart for bar and friends

jdh2358 · jdh2358 · commit 728dc3f99736 · 2008-06-10T15:53:19.000Z
svn path=/trunk/matplotlib/; revision=5462
diff --git a/lib/matplotlib/axes.py b/lib/matplotlib/axes.py
@@ -5773,6 +5773,16 @@ def hist(self, x, bins=10, range=None, normed=False, cumulative=False,
             #fig.savefig('histogram_demo',dpi=72)
             plt.show()
 
+
+        You can use labels for your histogram, and only the first
+        Rectangle gets the label (the others get the magic string
+        '_nolegend_'.  This will make the histograms work in the
+        intuitive way for bar charts::
+
+            ax.hist(10+2*np.random.randn(1000), label='men')
+            ax.hist(12+3*np.random.randn(1000), label='women', alpha=0.5)
+            ax.legend()
+
         """
         if not self._hold: self.cla()
 
