wolffd@0: function [Yout, Xout] = mlr_repeat_YX_by_rating(Y, X, weights)
wolffd@0: % [Yout, Xout] = mlr_repeat_YX_by_rating(Y, X, weights)
wolffd@0: % 
wolffd@0: % repeats the data in X and Y according to the weights specified
wolffd@0: % in weights or Y(:,3)
wolffd@0: 
wolffd@0: cprint(2, 'Repeating data for weighted learning');
wolffd@0: if nargin == 2
wolffd@0:     weights = cell2mat(Y(:,3));
wolffd@0: end
wolffd@0: 
wolffd@0: Yout = Y(:,1:2);
wolffd@0: 
wolffd@0: valid = ~(cellfun(@isempty, Y(:,1)) | cellfun(@isempty, Y(:,2)));
wolffd@0: 
wolffd@0: for i = 1:size(Y, 1)
wolffd@0:     if valid(i)
wolffd@0:         for j = 2:weights(i)
wolffd@0:             Yout(end + 1, :) = Y(i, 1:2);
wolffd@0:         end
wolffd@0:     end
wolffd@0: end
wolffd@0: 
wolffd@0: Xout = zeros(size(X,1), size(Y,1));
wolffd@0: Xout(:,1:size(X,2)) = X;
wolffd@0: for i = 1:size(Y, 1)
wolffd@0:     if valid(i)
wolffd@0:         for j = 2:weights(i)
wolffd@0:             Xout(:,end+1) = X(:,i);
wolffd@0:         end
wolffd@0:     end
wolffd@0: end