A Metabonomics Profiling Study on Phlegm Syndrome and Blood-Stasis Syndrome in Coronary Heart Disease Patients Using Liquid Chromatography/Quadrupole Time-of-Flight Mass Spectrometry

Table 3

Summary of the parameters for modeling quality.

Group	Mode	PCA model			PLS-DA model
		^eNo	𝑅^2𝑋	𝑄^2𝑌	^eNo	𝑅^2𝑋	𝑅^2𝑌	𝑄^2𝑌
CHD/healthy	ESI^+	2	0.433	0.378	2	0.376	0.993	0.981
CHD/healthy	ESI^−	3	0.349	0.187	3	0.237	0.989	0.969
A/B	ESI^+	2	0.430	0.349	4	0.508	0.989	0.913
A/B	ESI^−	3	0.279	0.105	3	0.253	0.994	0.928

A represented phlegm syndrome in CHD, B represented blood-stasis syndrome in CHD, and ^eNo represented amount of components.