Table 3.

Statistical parameters of PLS2 models for antitrypanosomal activity (Tbr) and cytotoxicity (L6).

Model	n var.a	n comp.b	n PCsc	R2		Q2
				Tbr	L6	Tbr	L6
1	44	40	7	0.83	0.91	0.52	0.41
2	44	39*	4	0.81	0.82	0.66	0.61
3	20	39*	3	0.80	0.81	0.71	0.71

*compound 24 was omitted since it was found to represent an outlier. ^a number of variables included; ^b number of compounds; ^c number of significant PLS components (latent variables). R²: squared correlation coefficient; Q²: squared correlation coefficient of leave-one-out cross validation.