Matrix conversion

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Muthuraj V
Muthuraj V 2012-1-11
how to get a matrix of the form from a given matrix, for exapmle
a= [2 3 4
5 6 7
8 9 0]
i want a matrix where in each elements are repeated in other matrix as follows
b= [2 2 3 3 4 4
2 2 3 3 4 4
5 5 6 6 7 7
5 5 6 6 7 7
8 8 9 9 0 0
8 8 9 9 0 0]

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采纳的回答

Chandra Kurniawan
Chandra Kurniawan 2012-1-11
I= [2 3 4;
5 6 7;
8 9 0];
[m n] = size(I);
ShX = 2;
ShY = 2;
r = m*ShX;
c = n*ShY;
J = zeros(r,c);
for x = 1 : m
for y = 1 : n
J((x-1)*ShX+1 : x*ShX, (y-1)*ShY+1 : y*ShY) = I(x,y);
end
end

更多回答（1 个）

Andrei Bobrov
Andrei Bobrov 2012-1-11
a = [2 3 4
5 6 7
8 9 0];
b = kron(a,[1 1;1 1])

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