MATLAB: Sorting element pairs by differences

sort

Suppose values is a vector, how to produce a matrix whose rows contain pairs of elements of this vector, ordered ascending by the differences between the elements.
For example:
    values = [1,2,1.5,1.9]
I want the matrix
    differences = [1.9 2; 1.5 1.9; 1 1.5; 1.5 2; 1 1.9; 1 2]

Best Answer

the following is my code
 values = [1,2,1.5,1.9];
 ss = nchoosek(values, 2);
 [~, idx] = sort(abs(diff(ss')));
 res = ss(idx, :)
Related Question