Table 2. The canonical discriminant function eigenvalues under light-controlled state.

Function	Eigenvalue	Percentage of variance	Cumulative percentage	Canonical correlation
1	5.683a	55.8	55.8	0.922
2	3.852a	37.8	93.5	0.891
3	0.424a	4.2	97.7	0.546
4	0.234a	2.3	100.0	0.435