combinations

combinations Generate all possible subsets of an array.

combs = combinations(arr) returns all possible combinations of elements in arr, for subset lengths ranging from 1 to K, where K is the length of arr.

Arguments

arr (vector): Input array of elements.

Returns

combs (cell array): A cell array where each element is a subset of arr with varying lengths (from 1 to length(arr)).

Example

arr = [1, 2, 3];
combs = combinations(arr);
% Output:
%   { [1], [2], [3], [1 2], [1 3], [2 3], [1 2 3] }