Features

Principal components

υ1

υ2

υ3

υ4

t12

0.3601

0.6662

0.6551

−0.0312

t11

0.5131

0.4501

−0.7216

−0.0759

fg

−0.5327

0.4520

−0.1821

0.6901

fw

−0.5723

0.3836

−1123

−0.7226