Model Building for Regional Ecological Risk Prediction and Evaluation of Prediction Accuracy

Table 5

List of principal components.

Component	Eigenvalue of initial factor			Eigenvalue of extracted factor
	Eigenvalue	Percentage of variance	Cumulative percentage	Eigenvalue	Percentage of variance	Cumulative percentage
1	6.813	56.777	56.777	6.813	56.777	56.777
2	3.468	28.901	85.678	3.468	28.901	85.678
3	0.816	6.799	92.477
4	0.465	3.876	96.352
5	0.250	2.085	98.437
6	0.106	0.879	99.316
7	0.053	0.438	99.755
8	0.023	0.193	99.948
9	0.006	0.052	100.000
10	0.000	0.000	100.000
11	0.000	0.000	100.000
12	0.000	0.000	100.000