How do I center axis labels in pcolor graph?

I have a pcolor "checkerboard plot" , how do I center the axis values to the center of the box (but still on the axis). I am using matlab 2012b.

Heres some code:

figure;
pcolor(1:13,1:5,ones(5,13))
xt = 1:12;
yt = 1:4;
set(gca,'XTick',xt)
set(gca,'YTick',yt)

Answer 1

[Alok Virkar]

setting axis x location to origin didnt work for me.

I changed some code and used imagesc instead of pcolor.

c = zeros(5,5);
c(1,1) = 1;
im = imagesc(c);
ax = gca;
ax.XTick = 1:5;
ax.YTick = 1:5;
ax.YDir = 'normal';

[Douglas Anderson]

I would like to thank you, Alok! I tried using heatmap() for the same kind of problem, and was frustrated at every turn. This ended up as a very simple, elegant solution.

Answer 2

[Mathieu NOE]

https://blogs.mathworks.com/pick/2009/02/06/plotaxisatorigin/

https://fr.mathworks.com/matlabcentral/answers/7272-setting-axes-with-center-in-origin-0-0-in-plotted-variables

or make you x and y inputs symetrical around zero (- a : +a)

[Alok Virkar]

setting axis x location to origin didnt work for me.

I changed some code and used imagesc instead of pcolor.

c = zeros(5,5);
c(1,1) = 1;
im = imagesc(c);
ax = gca;
ax.XTick = 1:5;
ax.YTick = 1:5;
ax.YDir = 'normal';