%% Change Direction of Coordinate System
% Create a checkerboard plot and change the direction of the coordinate
% system.

% Copyright 2015 The MathWorks, Inc.


%% 
% First, create the plot using the |summer| colormap. By default, the _x_
% values increase from left to right and the _y_ values increase from
% bottom to top.
C = eye(10);
pcolor(C)
colormap summer

%%
% Reverse the coordinate system so that the  _y_ values increase from
% top to bottom.

axis ij