随机森林对各个变量的重要性度量

%IncMSE

IncNodePurity

inst

−856.9933

762578.2

status

739.7872

241015.0

age

−333.6646

1014770.4

sex

1587.2545

230568.6

ph.ecog

4536.3915

369351.2

ph.karno

4365.2048

844147.5

pat.karno

2166.9551

601802.2

meal.cal

533.1502

1071148.3

wt.loss

642.5195

1072908.8