Project data

ex7/projectData.m

@@ -18,8 +18,18 @@ Z = zeros(size(X, 1), K);
 %                    projection_k = x' * U(:, k);
 %
 
+U_reduce = U(:, 1:K);
 
+m = size(X, 1);
+n = size(X, 2);
+for i = 1:m
+  x = X(i, :)';
+  z = x' * U_reduce;
 
+  Z(i, :) = z;
+end
+
+assert(size(Z) == [m K]);
 
 % =============================================================