[R] random forest varimp

Liaw, Andy andy_liaw at merck.com
Fri Apr 4 19:06:12 CEST 2008


Please see the "Details" section of ?importance in the package.

Andy 

From: helen.mills at yale.edu
> 
> Friends,
> I have noticed that many publications that use RF report 
> variable importance as
> a function of mean decrease in accuracy rather than mean 
> decrease in gini. Am I
> correct that the mean decrease in accuracy is just the mean 
> decrease in gini
> divided by 100?
> 
> Thanks,
> Helen Mills Poulos
> Yale School of Forestry
> 
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