Random Forest algorithm in R

Question

How can I see the algorithm of a randomForest in R?

I have tried with:

library(randomForest)
radomForest

But the output I´ve got is:

function (x, ...) 
UseMethod("randomForest")
<environment: namespace:randomForest>

Thanks!

adibender · Accepted Answer · 2017-10-20 10:06:47Z

2

You don't see much there, b/c randomForest is a S3 function and calls different functions depending on the class of the input you provide to the algorithm. Typing randomForest:::randomForest.default gives you more information.

However, I assume that parts of the functions used therein are written in C or Fortran. To see all the code, there is a GitHub mirror of the cran package here: https://github.com/cran/randomForest

Note: methods(randomForest) returns the available methods of a S3 generic function. In this case:

methods(randomForest)
## [1] randomForest.default* randomForest.formula*

edited Oct 20, 2017 at 10:06

answered Oct 20, 2017 at 9:56

adibender

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