MATLAB: “Subscripted assignment dimension mismatch” Please correct the program. tell me idea/logic to make sequence

Question

 s = [30 30 30 30 30 30 0 0 0 0];
s = sort(s, 'descend'); %sorting sequence s
uniques = unique(s); % finding unique elements
   for k = 1: length(uniques)
      ua(:,:,k) = repmat(uniques(:,k),1 ,(length(s))); %repeating unique values for combine
   end
 for k= 2:length(s)
    for j = length(s)-2:-1:1
       for l = 1:6
ua1(:,:,1)  = [ua(1, 1:j, 1), ua(1, 1:k, 2)]; %cut and combine values
     end
  end
end

output ua1

ua1 =

     0     0     0     0     0     0     0     0    30    30

my loop for ua1 is not working. please help me.

I want to generate sequence

 ua1(:,:,1) = [0 0 0 0 0 0 0 0 30 30];
 ua1(:,:,2) = [0 0 0 0 0 0 0 30 30 30];
 ua1(:,:,3) = [0 0 0 0 0 0 30 30 30 30];
 ua1(:,:,4) = [0 0 0 0 0 30 30 30 30 30];
 ua1(:,:,5) = [0 0 0 0 30 30 30 30 30 30];
 ua1(:,:,6) = [0 0 0 30 30 30 30 30 30 30];

or if possible tell me trick to make

 [0 0 0 0 0 0 0 0 0 30;
  0 0 0 0 0 0 0 0 30 30;
  0 0 0 0 0 0 0 30 30 30;
  0 0 0 0 0 0 30 30 30 30;
  0 0 0 0 0 30 30 30 30 30;
  0 0 0 0 30 30 30 30 30 30; 
  0 0 0 30 30 30 30 30 30 30;
  0 0 30 30 30 30 30 30 30 30;
  0 30 30 30 30 30 30 30 30 30];

Answer 1

Don't waste time with all of those loops when you can simply use hankel to generate the whole matrix:

>> hankel(zeros(1,9),[0,30*ones(1,9)])
ans =
     0     0     0     0     0     0     0     0     0    30
     0     0     0     0     0     0     0     0    30    30
     0     0     0     0     0     0     0    30    30    30
     0     0     0     0     0     0    30    30    30    30
     0     0     0     0     0    30    30    30    30    30
     0     0     0     0    30    30    30    30    30    30
     0     0     0    30    30    30    30    30    30    30
     0     0    30    30    30    30    30    30    30    30
     0    30    30    30    30    30    30    30    30    30