统计数据/数字＆＃39;是什么？在ctree的输出中意味着什么？如何在选择共变量的基础上检验检验统计量/ p值？感谢。
Model formula:
Dis ~ score_final
Fitted party:
[1] root
| [2] score_final <= 521
| | [3] score_final <= 445: 0.512 (n = 123, err = 30.7)
| | [4] score_final > 445: 0.358 (n = 684, err = 157.2)
| [5] score_final > 521: 0.253 (n = 1369, err = 258.6)
Number of inner nodes: 2
Number of terminal nodes: 3