Table 4.

Weight of each input variable in the first four principal components. The three most relevant weights of each principal component are emphasized in bold

Variable	${\mathrm{PC}}_1$	${\mathrm{PC}}_2$	${\mathrm{PC}}_3$	${\mathrm{PC}}_4$
$x_1$	0.0108	−0.0562	−0.1899	−0.2419
$x_2$	−0.0066	−0.4152	0.2447	−0.2238
$x_3$	0.8342	0.0150	−0.3281	−0.1498
$x_4$	0.5694	0.0761	0.6638	0.4199
$x_5$	−0.1176	1.1189	0.1200	−0.4809
$x_6$	0.2586	0.2200	0.9944	−0.4558
$x_7$	0.0665	0.2309	−0.1545	1.3105
$x_8$	0.1264	−0.1882	0.1256	0.0881