The following code might help.
for k = 1:2
ax(k) = subplot(1,2,k);axis square;
end
% Subplot 1
subplot(ax(1));
% Pseudocolor plot
pcolor(ax(1),rand(50));colormap(ax(1),winter);colorbar;
title('First Subplot');
% Subplot 2
subplot(ax(2));
x = linspace(0,3*pi,200);
y = cos(x) + rand(1,200);
sz = 25;
c = linspace(1,10,length(x));
% Scatter plot
scatter(x,y,sz,c,'filled');colormap(ax(2),jet);colorbar;
title('Second Subplot');
