MATLAB: Auto fill zero matrix without row-repetitions

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Please help. I'm new to matlab scripting and need a bit of help. I have a series of numbers: test = [1 1 1 2 2 2 3 3 3 4 4 4 5 5 5] which I wants to randomely fill into a 5×3 matrix without having the same number in the same row. How can I do this??? Potentially I could randomize the test vector and fill it into the 5×3 matrix but I dont know how to do this without getting the same number in the same row. PLEASE help…

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Thanks a lot for your suggestions. However, I made a minor mistake. I want the final matrix to be a 3x5 instead of a 5x3 matrix. Sorry guys, but I still need a bit of help to establish the correct code.

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MATLAB: Identify duplicate rows in a matrix

You can identify the repeated rows by invoking unique function of Matlab, and then set to 0 non-unique rows as follows:

[C,ia,ib]=unique(A,'rows','stable');
i=true(size(A,1),1);
i(ia)=false;
A(i,:)=0;

Then A will be your output.

MATLAB: I want to traverse an array in an ‘inverse s’ order and store in a single row array is there any matlab function or code for this?eg[1 2 3; 3 4 5; 4 5 1] becomes [1,2,3,5,4,3,4,5,1]

>> A = [1,2,3;3,4,5;4,5,1];
>> A(2:2:end,:) = A(2:2:end,end:-1:1);
>> reshape(A',1,[])
ans =
   1   2   3   5   4   3   4   5   1

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Related Solutions

MATLAB: Identify duplicate rows in a matrix

MATLAB: I want to traverse an array in an ‘inverse s’ order and store in a single row array is there any matlab function or code for this?eg[1 2 3; 3 4 5; 4 5 1] becomes [1,2,3,5,4,3,4,5,1]

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