Table 3. Out-of-sample predictive accuracy across different models.

Model	MSE	SE	MAE	SE
Null	813.1	54.9	23.6	0.7
BART	387.9	24.3	15.4	0.5
RF	323.6	18.9	13.9	0.4
MARS1	526.3	51.2	16.8	0.6
MARS2	512.6	55.1	16.5	0.6
MARS3	649.8	136.9	17.0	0.7
MARS5	690.1	202.7	16.6	0.7
SVM	582.2	43.2	17.8	0.7
GBM	755.9	51.4	22.7	0.7