Number of Variables RMSE R2 MAE Selected
1 5.74 0.94 3.08
2 4.25 0.97 1.89
3 3.57 0.98 1.39 *
4 3.80 0.97 1.54
5 4.36 0.96 1.80
6 4.08 0.97 1.55
7 4.29 0.96 1.66
8 4.49 0.96 1.79
9 4.34 0.96 1.66
10 4.48 0.96 1.73