Added some more documentation regarding "capthick".

WeatherGod · WeatherGod · commit 8a26ab7d0b8b · 2012-07-28T16:48:08.000-04:00
diff --git a/doc/api/api_changes.rst b/doc/api/api_changes.rst
@@ -55,6 +55,13 @@ Changes in 1.2.x
   :class:`~matplotlib.colorbar.ColorbarBase` allows one to control the size of
   the triangular minimum and maximum extensions on colorbars.
 
+* A new keyword *capthick* in :meth:`~matplotlib.pyplot.errorbar` has been
+  added as an intuitive alias to the *markeredgewidth* and *mew* keyword
+  arguments, which indirectly controlled the thickness of the caps on
+  the errorbars.  For backwards compatibility, specifying either of the
+  original keyword arguments will override any value provided by
+  *capthick*.
+
 Changes in 1.1.x
 ================
 
diff --git a/lib/matplotlib/axes.py b/lib/matplotlib/axes.py
@@ -5219,7 +5219,7 @@ def errorbar(self, x, y, yerr=None, xerr=None,
             The linewidth of the errorbar lines. If *None*, use the linewidth.
 
           *capsize*: scalar
-            The size of the error bar caps in points
+            The length of the error bar caps in points
 
           *capthick*: scalar
             An alias kwarg to *markeredgewidth* (a.k.a. - *mew*). This
