matplotlib
diff --git a/‎lib/matplotlib/axes/_axes.py
Lines changed: 19 additions & 2 deletions b/‎lib/matplotlib/axes/_axes.py
Lines changed: 19 additions & 2 deletions
@@ -5365,6 +5365,12 @@ def pcolor(self, *args, **kwargs):
         snap : bool, optional, default: False
             Whether to snap the mesh to pixel boundaries.
 
+       dropdata: bool, default: True
+            If True (default), and X and Y are the same size as C in their
+            respective dimensions, drop the last element of C in both
+            dimensions.  If False, interpolate X and Y to their midpoints
+            and extrapolate their endpoints.
+
         Returns
         -------
         collection : `matplotlib.collections.Collection`
@@ -5443,13 +5449,16 @@ def pcolor(self, *args, **kwargs):
         if not self._hold:
             self.cla()
 
+        dropdata = kwargs.pop('dropdata', True)
+
         alpha = kwargs.pop('alpha', None)
         norm = kwargs.pop('norm', None)
         cmap = kwargs.pop('cmap', None)
         vmin = kwargs.pop('vmin', None)
         vmax = kwargs.pop('vmax', None)
 
-        X, Y, C = self._pcolorargs('pcolor', *args, allmatch=False)
+        X, Y, C = self._pcolorargs('pcolor', *args,
+                allmatch=False, dropdata=dropdata)
         Ny, Nx = X.shape
 
         # unit conversion allows e.g. datetime objects as axis values
@@ -5620,6 +5629,12 @@ def pcolormesh(self, *args, **kwargs):
           *alpha*: ``0 <= scalar <= 1``  or *None*
             the alpha blending value
 
+          *dropdata*: boolean
+            if True (default), and X and Y are the same size as C in their
+            respective dimensions, drop the last element of C in both
+            dimensions.  If False, interpolate X and Y to their
+            midpoints and extrapolate their endpoints.
+
         Return value is a :class:`matplotlib.collections.QuadMesh`
         object.
 
@@ -5638,6 +5653,7 @@ def pcolormesh(self, *args, **kwargs):
         if not self._hold:
             self.cla()
 
+        dropdata = kwargs.pop('dropdata', True)
         alpha = kwargs.pop('alpha', None)
         norm = kwargs.pop('norm', None)
         cmap = kwargs.pop('cmap', None)
@@ -5649,7 +5665,8 @@ def pcolormesh(self, *args, **kwargs):
 
         allmatch = (shading == 'gouraud')
 
-        X, Y, C = self._pcolorargs('pcolormesh', *args, allmatch=allmatch)
+        X, Y, C = self._pcolorargs('pcolormesh', *args,
+                allmatch=allmatch, dropdata=dropdata)
         Ny, Nx = X.shape
         X = X.ravel()
         Y = Y.ravel()