What is MinLeafSize in Hyperparameter Optimization

Hello, I'm currently working on the syntax of hyper parameter optimization and don't understand the table with MinLeafSize for example here: https://de.mathworks.com/help/stats/fitrtree.html#bvdmo26-1. In iteration 1 it says MinLeafSize 28, what does that mean exactly?

Best regards, Dimitri

Answer 1

[Alan Weiss]

MinLeafSize description. The algorithm is briefly sketched here. There is more explanation here. In particular, this might help.

Alan Weiss

MATLAB mathematical toolbox documentation

[Dimitri]

Thanks Alan, through your first link and some research on the internet, I found a good answer here: https://discuss.analyticsvidhya.com/t/what-is-good-in-a-decision-tree-a-large-or-a-small-leaf-size/2108/2 . Thanks a lot!