Hide "inner" {x,y}labels in label_outer too.

anntzer · anntzer · commit 27d669c5a7d0 · 2016-06-20T18:51:21.000-07:00
`ax.label_outer` used to hide only "inner" ticklabels; make it hide axes
labels too.  (I couldn't find a way to just switch label visibility, so
I just set the labels to the empty string instead.)
diff --git a/lib/matplotlib/axes/_subplots.py b/lib/matplotlib/axes/_subplots.py
@@ -127,19 +127,23 @@ def is_last_col(self):
 
     # COVERAGE NOTE: Never used internally or from examples
     def label_outer(self):
-        """
-        set the visible property on ticklabels so xticklabels are
-        visible only if the subplot is in the last row and yticklabels
-        are visible only if the subplot is in the first column
+        """Only show "outer" labels and tick labels.
+
+        x-labels are only kept for subplots on the last row; y-labels only for
+        subplots on the first column.
         """
         lastrow = self.is_last_row()
         firstcol = self.is_first_col()
         for label in self.get_xticklabels():
             label.set_visible(lastrow)
         self.get_xaxis().get_offset_text().set_visible(lastrow)
+        if not lastrow:
+            self.set_xlabel("")
         for label in self.get_yticklabels():
             label.set_visible(firstcol)
         self.get_yaxis().get_offset_text().set_visible(firstcol)
+        if not firstcol:
+            self.set_ylabel("")
 
     def _make_twin_axes(self, *kl, **kwargs):
         """
