How can I shift rows and columns, and also replicating Sub matrixes.
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First question, I have a 4x4 magic matrix, A. I want to create a new matrix D by shifting the rows in matrix A down by one, and by shifting the columns left by 2. What would follow D= ?
Second question I have a 2x2 matrix B. I want to create a 4x4 matrix by replicating B 4 times. How would I go about doing that?
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Respuestas (3)
Azzi Abdelmalek
el 20 de Jun. de 2014
A=reshape(1:16,4,4) , % First example
A=circshift(A,[1 0]) % Shift down by 1
A=circshift(A,[0 -2]) % Shift left by 2
B=[1 2;3 4] % Second example
B=repmat(B,2,2);
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David Sanchez
el 20 de Jun. de 2014
A = magic(4);
D = [A(end,:); A(1:end-1,:)]; % shift rows down
D = [D(:,3:end) D(:,1:2)]; % shift colums leftx2
B = rand(2); %2x2 matrix
G = [B B; B B];%4x4 matrix by replicating B 4 times
Andrei Bobrov
el 20 de Jun. de 2014
A = magic(4);
D = circshift(A,[1,2]);
B = randi(10,2);
out = kron(ones(2),B);
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