Creating a 3D table is not yet allowed in MATLAB. Also, you cannot assign a table as an element of a simple array. A good way is to use a cell array where each of its cells contains a table.
x(:,:,1)=1;
x(:,:,2)=2;
y(:,:,1)=3;
y(:,:,2)=4;
z = cell(1,2);
for i=1:numel(z)
z{i}=table(x(:,:,i),y(:,:,i));
z{i}.Properties.VariableNames = {'x','y'};
end
You can then access the table values using variable names like this
z{1}.x % x column of first table
z{2}.y % y column of second table
