MATLAB: Repeat 3-D array elements

3d arraymatrixrepeat elements

Hi
I have a 3-d array x of size 67x960x80. I need to repeat the elements of the array 3 times to make it an array of size 67x960x240. How i can do that.?

Best Answer

Use the repmat function: 
A = rand(67, 960, 80);
B = repmat(A, 1, 1, 3);
sizeB = size(B)
producing: 
sizeB =
    67   960   240
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