Table 2.

ANOVA for principal components 1–3.

PC1	Degrees of freedom	Sum of squares	Mean square	F-value	p-value
Position	5	153.7	30.745	3.445	0.01*
Residuals	45	410.5	8.924
PC2
Position	5	20.07	4.015	3.208	0.01*
Residuals	45	57.57	1.252
PC3
Position	5	0.43	0.0864	0.068	0.997
Residuals	45	58.58	1.2734

^*= statistical significance p < 0.05