Matlab, combinations of all cells -

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this question has answer here:

i need combine data of n (random) arrays different lengths. ex: a=[1 3 2 7 8], b=[2 5 3 9] , c=[5 6] , maybe have d, e, f etc.... need combination of elements like: m={[1 2 5], [1 2 6], [1 5 5], [1 5 6], [1 3 5], [1 3 6] ....}.

solution 3 arrays:

[a,b,c] = meshgrid(a, b, c); m = [a(:), b(:), c(:)];

solution n arrays iterating on short dimension n:

a=[1 3 2 7 8]; b=[2 5 3 9]; c=[5 6]; d=[1 3 5];  arrays = { a, b, c, d }; m = a';  = 2:length(arrays)     a1 = m;     a2 = arrays{i}';     [i1, i2] = meshgrid(1:length(a1), 1:length(a2));     m = [a1(i1(:), :) a2(i2(:))];     end

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