Table 7.

Validation of the MLR model.

Training Set	R2	F	RMS	Test Set	R2	F	RMS
A+B+C+D	0.869	165.290	0.599	T	0.853	30.861	0.691
B+C+D+T	0.857	150.314	0.633	A	0.904	50.357	0.527
A+C+D+T	0.864	159.122	0.611	B	0.883	40.100	0.611
A+B+D+T	0.867	162.819	0.600	C	0.866	32.528	0.674
A+B+C+T	0.868	167.263	0.594	D	0.856	29.716	0.713
Average	0.865	160.962	0.607		0.872	36.712	0.643