
Model formula:
robs ~ tppow_mean + tppow_sprd + tppow_min + tppow_max + tppow_mean0612 + 
    tppow_mean1218 + tppow_mean1824 + tppow_mean2430 + tppow_sprd0612 + 
    tppow_sprd1218 + tppow_sprd1824 + tppow_sprd2430 + capepow_mean + 
    capepow_sprd + capepow_min + capepow_max + capepow_mean0612 + 
    capepow_mean1218 + capepow_mean1224 + capepow_mean1230 + 
    capepow_sprd0612 + capepow_sprd1218 + capepow_sprd1224 + 
    capepow_sprd1230 + dswrf_mean_mean + dswrf_mean_max + dswrf_sprd_mean + 
    dswrf_sprd_max + msl_mean_mean + msl_mean_min + msl_mean_max + 
    msl_sprd_mean + msl_sprd_min + msl_sprd_max + pwat_mean_mean + 
    pwat_mean_min + pwat_mean_max + pwat_sprd_mean + pwat_sprd_min + 
    pwat_sprd_max + tmax_mean_mean + tmax_mean_min + tmax_mean_max + 
    tmax_sprd_mean + tmax_sprd_min + tmax_sprd_max + tcolc_mean_mean + 
    tcolc_mean_min + tcolc_mean_max + tcolc_sprd_mean + tcolc_sprd_min + 
    tcolc_sprd_max + t500_mean_mean + t500_mean_min + t500_mean_max + 
    t700_mean_mean + t700_mean_min + t700_mean_max + t850_mean_mean + 
    t850_mean_min + t850_mean_max + t500_sprd_mean + t500_sprd_min + 
    t500_sprd_max + t700_sprd_mean + t700_sprd_min + t700_sprd_max + 
    t850_sprd_mean + t850_sprd_min + t850_sprd_max + tdiff500850_mean + 
    tdiff500850_min + tdiff500850_max + tdiff700850_mean + tdiff700850_min + 
    tdiff700850_max + tdiff500700_mean + tdiff500700_min + tdiff500700_max + 
    msl_diff

Fitted party:
[1] root
|   [2] tppow_max <= 3.27397
|   |   [3] tppow_max <= 1.22989
|   |   |   [4] t850_sprd_max <= 0.68513
|   |   |   |   [5] tcolc_sprd_min <= 0.00152
|   |   |   |   |   [6] tppow_mean0612 <= 0.26024: 0.025 (n = 91, err = 2.9)
|   |   |   |   |   [7] tppow_mean0612 > 0.26024: 0.036 (n = 30, err = 0.4)
|   |   |   |   [8] tcolc_sprd_min > 0.00152: 0.169 (n = 47, err = 6.3)
|   |   |   [9] t850_sprd_max > 0.68513: 0.340 (n = 20, err = 10.4)
|   |   [10] tppow_max > 1.22989
|   |   |   [11] tmax_mean_mean <= 283.70308: 1.392 (n = 86, err = 153.1)
|   |   |   [12] tmax_mean_mean > 283.70308
|   |   |   |   [13] t500_sprd_mean <= 0.1828: 0.477 (n = 129, err = 173.8)
|   |   |   |   [14] t500_sprd_mean > 0.1828: 1.100 (n = 70, err = 149.6)
|   [15] tppow_max > 3.27397
|   |   [16] tppow_max <= 5.68479: 2.666 (n = 189, err = 798.9)
|   |   [17] tppow_max > 5.68479: 5.174 (n = 82, err = 340.6)

Number of inner nodes:    8
Number of terminal nodes: 9
