Table 3.

Basic statistics for the seven spots over all subjects in the training and test groups

Spot	Mean	Standard deviation	PC1	PC2
4	1.92	0.264	0.25	0.25
10	2.79	0.173	−0.41	−0.26
16	1.57	0.187	0.49	0.43
85	1.81	0.126	0.36	−0.27
113	3.13	0.084	−0.14	0.60
421	1.92	0.111	0.57	−0.16
624	2.82	0.077	0.23	−0.48

The first two components (PC1 and PC2) from a principal components analysis of the correlations also are given