. Author manuscript; available in PMC: 2016 Nov 1.

Published in final edited form as: Mol Nutr Food Res. 2015 Sep 15;59(11):2107–2118. doi: 10.1002/mnfr.201500236

Table 1.

Summary of parameters for PCA, PLS-DA, and OPLS-DA models for rat plasma after administering PPCP or PPAP by oral gavage

	¹H NMR metabolomics			LC-HRMS metabolomics

	PCA	PLS-DA	OPLS-DA	PCA	PLS-DA	OPLS-DA
N^a	5	2	1P^c+1O^d	4	2	1P^c+1O^d
R²X(cum)^b	0.783	0.433	0.433	0.516	0.428	0.428
R²Y(cum)^b	---	0.676	0.676	---	0.995	0.995
Q²(cum)^b	0.513	0.254	0.291	0.521	0.982	0.974
*Correct Classification Rate	---	---	---	---	100%±0	100%±0

N: number of components.

R²X (cum)and R²Y (cum) are the cumulative modeled variations in the X and Y matrix, respectively. Q²Y (cum) is the cumulative predicted variation in the Y matrix.

Predictive component.

Orthogonal component.