Modifying a matrix such that each entry can be written in a block of four
3 views (last 30 days)
Show older comments
Ahmad Hasnain
on 6 Sep 2021
Edited: Walter Roberson
on 6 Sep 2021
Hi,
I have a matrix, say
A = [1 2
3 4];
I want to modify it in such a way that it can be written as
A = [1 1 2 2
1 1 2 2
3 3 4 4
3 3 4 4];
Each entry in the matrix A can be written in a block of four. How can I code it?
0 Comments
Accepted Answer
Walter Roberson
on 6 Sep 2021
Edited: Walter Roberson
on 6 Sep 2021
A = [1 2
3 4]
B = kron(A, ones(2,2))
C = repelem(A, 2, 2)
0 Comments
More Answers (1)
Yamina chbak
on 6 Sep 2021
a=[1 2 ; 3 4];
A=zeros(2*size(a));
A(1:2,1:2)=a(1);
A(1:2,3:4)=a(3);
A(3:4,1:2)=a(2);
A(3:4,3:4)=a(4);
A
0 Comments
See Also
Categories
Find more on Multidimensional Arrays in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!