Table 5.

relative Root mean square error (rRMSE) value of tomato shoot mass (SM), fruit weight (FW), and number of fruits (FN) using random forest (RF), ridge regression (RI), and support vector machine (SVM) models with selected variables set from first-order statistics and all variables

Model	From first-order statistics
	Boruta	DALEX	GA	LASSO	RFE
SM [kg plant−1]
RF	17.8	22.2	16.9	22.5	22.9
RI	26.4	26.7	24.9	30.6	26.7
SVM	17.6	18.9	16.7	21.4	21.8
FW [kg plant−1]
RF	14.0	13.9	13.2	15.7	24.1
RI	49.6	48.5	48.5	50.1	48.0
SVM	14.3	14.5	14.6	18.7	15.9
FN [piece plant−1]
RF	12.6	14.2	10.0	12.4	14.2
RI	30.4	25.5	30.3	18.1	21.2
SVM	13.1	14.2	13.5	13.0	13.6

Model	From first- and second-order statistics
	Boruta	DALEX	Genetic	LASSO	RFE
SM [kg plant−1]
RF	18.7	16.5	15.0	13.6	13.4
RI	22.7	20.5	11.0	25.8	17.6
SVM	21.4	18.7	11.2	21.6	20.5
FW [kg plant−1]
RF	18.0	15.6	12.5	13.8	15.6
RI	11.5	20.6	12.8	22.1	16.7
SVM	14.7	15.4	14.6	15.9	14.5
FN [piece plant−1]
RF	14.9	13.5	11.2	11.5	13.5
RI	15.5	17.7	12.7	28.1	13.4
SVM	12.8	10.9	8.8	10.6	14.1