Table 3: Selected variables, average RMSE, and percentage for each variable being selected for symmetric outlier (threshold = 71.41).

Single-split-AICSingle-split-BIC Multisplit-AICMultisplit-BICR. multisplit-AICR. multisplit-BIC

RMSE0.6630.6630.230.230.2120.212
191.1887.5492.196.7 100100
216.973.6915.86.01.1361.136
376.3663.7591.081.9100100
488.4584.2689.875.1 100100
518.074.2118.36.41.221.22
685.8878.7193.696.8 100100
717.883.2815.43.5 1.211.21
81583.0217.83.30.780.78
968.4551.9291.596.5 99.599.5
1018.333.69617.94.60.950.95
Selected variables1, 3, 4, 61, 4, 61, 3, 4, 6, 91, 3, 4, 6, 91, 3, 4, 6, 91, 3, 4, 6, 9