Generating combination of matrix with 3 elements
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I want to optimally generate a 100 matrix, of size MxN using the combination of 3 elements (0,1,2) and save them into seperate mat files. Can someone please help. I dont want to generate the matrix randomly.
Accepted Answer
David Hill
on 16 Feb 2022
Edited: David Hill
on 16 Feb 2022
So each row of 12 elements can only contain the elements [0 1 2] ? Are there any other contrains? How many times can each element be repeated in each row? Why don't you want to generate the matrix randomly?
A=[repmat([0 1 2],1,12)];
N=zeros(64,12,100);
for m=1:100
for k=1:100
M(k,:)=A(randperm(numel(A),12));
end
M=unique(M,'rows');
N(:,:,m)=M(1:64,:);
end
5 Comments
David Hill
on 17 Feb 2022
It is always much easier to code using indexing instead of having a bunch of variables. A 3D matrix (N) can be indexed to obtain all 100 of your 2D matrices.
M1=N(:,:,1);%is a 2D matrix
M2=N(:,:,2);%is a 2D matrix
M3=N(:,:,3);%is a 2D matrix
M100=N(:,:,100);%is a 2D matrix
All 100 of your 2D matrices are stored in a single 3D matrix.
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