pca_animation.m

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Matlab code to produce PCA animations shown here:
% http://stats.stackexchange.com/questions/2691
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

% Static image

clear all
rng(42)

rioshen

public class Backtrack {
    public static List<List<Object>> backtrack(int[] A) {
        // Set up a list of list to hold all possible solutions
        List<List<Object>> result = new LinkedList<List<Object>>();
        if (A == null || A.length == 0) {
            return result;
        }

        // As we need to recursively generate every solution,
        // a variable is needed to store single solution.