"Subscripted assignment dimension mismatch" Please correct my program. tell me idea/logic to make sequence

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Triveni 2016-2-22

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评论： Stephen23 2016-2-23

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

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Stephen23 2016-2-22

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编辑：Stephen23 2016-2-22

在 MATLAB Online 中打开

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    30
   0     0     0     0     0     0     0    30    30
   0     0     0     0     0     0    30    30    30
   0     0     0     0     0    30    30    30    30
   0     0     0     0    30    30    30    30    30
   0     0     0    30    30    30    30    30    30
   0     0    30    30    30    30    30    30    30
   0    30    30    30    30    30    30    30    30
  30    30    30    30    30    30    30    30    30

更多回答（1 个）

Walter Roberson 2016-2-22

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在 MATLAB Online 中打开

ua1(:,:,1) = [ua(1, 1:j, 1), ua(1, 1:k, 2)]; %cut and combine values

In that code, 1:j will have one length for the first j, but for the next j would have a different length. Therefore for different iterations of j, the right hand side will be different sizes, but each time you try to write it to the same size on the left.

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Triveni 2016-2-22

1:j is in decreasing order....and 1:k is in increasing order...size of ua1 matrix same for every iteration. Sir if you have any idea ...please correct this or make any program with your blessings..for generating these sequnces.

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