Table 3.

Performance measures of Pred PRBA on leave-one-outcrossvalidations.

	Correlation coefficient(r)	Mean absolute error(MAE)	Coefficient of determination(R2)
Class I	0.818	1.215	0.623
Class II	0.731	1.145	0.518
Class III	0.894	1.270	0.288
Class IV	0.803	0.749	0.489
Class V	0.768	1.425	0.255
Class VI	0.762	0.879	0.531
Average value	0.796	1.114	0.451