MATLAB: Fast way to replicate array

matrixrepmat

I have a matrix W of size ExF, and I have a matrix D of size NxFxNxE where D(n,:,n,:) = W'

Is there a fast way to replicate W to form D without having to loop through N

Thanks!

w=[1 2; ...
   3 4; ...
   5 6];
N=5;
E=size(w,1);
F=size(w,2);
D=repmat(reshape(w',1,F,1,E),N,1,N,1);

Hi,

your function f should have two inputs, namely t and X, where X is a two component vector [x, y]. Therefore your w=1 should in fact be w = [-2 1];

Titus

temp = repmat({S}, 1, 11);
result = blkdiag(temp{:});