Detection Model for Seepage Behavior of Earth Dams Based on Data Mining

Table 3

Eigenvalues and the variance contribution rates of C_p and C_b.

	PC
Prewall osmometers	Eigenvalues	3.86	0.10	0.02	0.01
	Variance contribution rate (%)	96.59	2.58	0.51	0.32
	Cumulative variance	96.59	99.17	99.68	100
	Contribution rate (%)
	PC
Back-wall osmometers	Eigenvalues	2.56	1.02	0.29	0.13
	Variance contribution rate (%)	63.85	25.55	7.35	3.26
	Cumulative variance	63.85	89.40	96.75	100
	Contribution rate (%)