“ R”包装“游侠”中的“最大深度”是什么意思？

Question

Other random forest tools have the "dial" that limits max depth of splits on a particular branch.

h2o.randomForest has "max_depth", for example.

What is the version of that for "ranger"?

Answer 1

I'm not familiar with the h2o.randomForest package, but my general understanding of random forests is that each tree will be grown until a certain minimum number of data points fit into each leaf of the tree. In other words, a tree will keep splitting until a certain level of classification of each data point has been achieved. In the standard randomForest package, there is a parameter called nodesize which controls this:

https://stats.stackexchange.com/questions/158583/what-does-node-size-refer-to-in-the-random-forest

The analogous parameter in the ranger package seems to be min.node.size . You can compare the information in the link above with the documentation to convince yourself that they are both discussing the same thing.