HI, Dear Andy,
I run the RandomFOrest in R, and get the following resutls in variable
importance:
What is the meaning of MeanDecreaseAccuracy and MeanDecreaseGini?
I found they are raw values, they are not scaled to 1, right?
Which column if most similar to the variable rel.influence in Boosting?
Thanks so much!
> fit$importance
0 1 MeanDecreaseAccuracy MeanDecreaseGini
CT 0.0022352025 0.003829344 0.0030311246 5.184427
DP 0.0069461974 0.016387520 0.0116650960 15.440624
DY 0.0141150255 0.026031690 0.0200603555 19.901538
FC 0.0024279188 0.005158945 0.0037948155 5.527078
NE 0.0352705133 0.070503233 0.0527718526 46.278504
NW 0.0256059127 0.034433862 0.0299981496 26.440402
QT 0.0037228694 0.008181262 0.0059571350 9.308828
SK 0.0048187014 0.008895719 0.0068609174 10.662129
TA 0.0042134249 0.011746533 0.0079851331 12.878367
WC 0.0177155268 0.014981440 0.0163366320 14.240232
WD 0.0232972311 0.034083695 0.0286702065 25.335182
WG 0.0328547215 0.053142508 0.0429480441 30.663749
WW 0.0093983693 0.006377956 0.0078681474 7.250101
YG 0.0051691399 0.007338639 0.0062618144 11.084111
num_cell 0.0061355526 0.005373049 0.0057463613 5.060577
num_genes 0.0364878788 0.044544488 0.0404558096 32.745034
position 0.0025375614 0.011566496 0.0070255302 10.070505
freq_hypo 0.0008723241 0.001757602 0.0013181209 1.930695
freq_intra 0.0009449492 0.001943090 0.0014431451 2.611950
log_hypo 0.0004514713 0.001366561 0.0009096419 1.736749
acid_per 0.0125815445 0.023360179 0.0179634375 21.131681
base_per 0.0070077737 0.012196570 0.0096129124 13.675893
charge_per 0.0095668425 0.024125997 0.0168345956 20.969665
hydrophob_per 0.0185736697 0.031941513 0.0252200036 25.994903
polar_per 0.0169369327 0.023633413 0.0202776247 20.890415
--
Sincerely,
Changbin
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