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Enhancement: varUsed Convenience Function #641

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DarioS opened this issue Oct 13, 2022 · 1 comment

DarioS commented Oct 13, 2022

It would be nice to be able to easily discover which variables are ever used and which aren't, like varUsed in randomForest.

Variables Used in a Random Forest
Description
Find out which predictor variables are actually used in the random forest.
Usage
varUsed(x, by.tree = FALSE, count = TRUE)
[Package randomForest version 4.7-1.1]

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snembrini commented Dec 29, 2023 •

edited

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Hey Dario,
I know it's been a year, but I hope this helps (see attached function

rg.iris <- ranger(Species ~ ., data = iris, importance = "impurity",num.trees = 100)
varUsedRanger(rg.iris,by.tree = F,percent = T)

varUsedRanger.txt

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