Learner  MSE    RMSE   MAE    RSE    RRSE   RAE    R2     
maj      84.777  9.207  6.659  1.004  1.002  1.002 -0.004 
lr       23.729  4.871  3.413  0.281  0.530  0.513  0.719 
rt       39.705  6.301  4.549  0.470  0.686  0.684  0.530 
knn      17.244  4.153  2.670  0.204  0.452  0.402  0.796 
