Recover data

ex7/recoverData.m

@@ -21,7 +21,15 @@ X_rec = zeros(size(Z, 1), size(U, 1));
 %               Notice that U(j, 1:K) is a row vector.
 %
 
+U_reduce = U(:, 1:K);
 
+for i = 1:size(Z, 1)
+  z = Z(i, :)';
+
+  x_rec = z' * U_reduce';
+
+  X_rec(i, :) = x_rec;
+end
 
 % =============================================================