Answers last question of the assignment about PCA

2026-03-10 08:31:20 +00:00 · 2015-12-24 14:16:26 +01:00
parent 50710f0ce2
commit 1f3bea0684
2 changed files with 3 additions and 0 deletions
--- a/machine-learning-ex7/ex7/recoverData.m
+++ b/machine-learning-ex7/ex7/recoverData.m
@@ -21,6 +21,9 @@ X_rec = zeros(size(Z, 1), size(U, 1));
 %               Notice that U(j, 1:K) is a row vector.
 %               

+U_reduce = U(:, 1:K);
+
+X_rec = Z * U_reduce';


 % =============================================================
--- a/machine-learning-ex7/ex7/token.mat
+++ b/machine-learning-ex7/ex7/token.mat