Study on the Fingerprint Spectrum and the Spectrum-Effect Relationship of Analgesic and Anti-Inflammatory Effects of the Aqueous Extract from Dalbergia hancai Benth

Table 3

Principal component eigenvalue and variance contribution rate of aqueous extract of D. hancai.

Principal components	Eigenvalue	Variance contribution rate (%)	Cumulative contribution rate (%)
1	8.160	68.000	68.000
2	3.355	27.962	95.962
3	0.348	2.897	98.859
4	0.090	0.754	99.613
5	0.024	0.202	99.815
6	0.017	0.141	99.956
7	0.004	0.034	99.990
8	0.001	0.009	99.999
9	0.000	0.001	100.000