Journal of Analytical Methods in Chemistry / 2014 / Article / Fig 8

Research Article

Global Clustering Quality Coefficient Assessing the Efficiency of PCA Class Assignment

Figure 8

Quadratic discriminant analysis performed with the (PC1, PC2) scores associated with stimulant amphetamines (class M), hallucinogens (class T), and negatives (class N) in the case of spectra preprocessed with the selective amplifier.