split a rectangular matrix

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Elysi Cochin 2019-4-1

评论： Akira Agata 2019-4-1

i have a matrix as

input = [1 0 0 0; 0 1 0 0; 0 0 1 0];

how can i split a the input matrix as

output1 = [1 0 0 0; 0 0 0 0; 0 0 0 0];
output2 = [0 0 0 0; 0 1 0 0; 0 0 0 0];
output3 = [0 0 0 0; 0 0 0 0; 0 1 0 0];

store output1-3 in a single matrix named output with n-dimension.

matrix input can be of any dimension but rectangular matrix and only diagonal values will be there.

Akira Agata 2019-4-1

How about the following?

input = [1 0 0 0; 0 1 0 0; 0 0 1 0];
output = zeros([size(input),size(input,1)]);
for kk = 1:size(input,1)
  output(kk,:,kk) = input(kk,:);
end

madhan ravi 2019-4-1

Note: Naming a variable input is not a good idea, it will shadow the in-built function input().

Akira Agata 2019-4-1

Yes, that's true. Thank you for your additional comment !

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