Machine Learning: Definition of %Var(y) in R’s randomForest package’s regression method

March 13, 2015
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(This article was first published on R – The Hack-R Blog, and kindly contributed to R-bloggers)

The second column is simply the first column divided by the variance of the response that have been OOB up to that point (20 trees), times 100. 
Source:
https://stat.ethz.ch/pipermail/r-help/2008-July/167748.html

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