Table 4. Accuracy of prediction for yield in 2012 using random training sets with 100 independent randomizations.

	RR	GAUSS
SR_FI	0.487 ± 0.093	0.516 ± 0.086
SR_MWS	0.617 ± 0.078	0.626 ± 0.077
C_SWS	0.382 ± 0.104	0.378 ± 0.104

RR, Ridge regression kernel; GAUSS: Gaussian kernel; SR_FI, Santa Rosa under Full Irrigation; SR_MWS, Santa Rosa under Mild Water Stress; C_SWS, Cauqenes under Severe Water Stress.