How can I specify a Min LeafSize in a decision tree and also optimize it?

Question

Rafael Cordero 2021-7-22

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/884009-how-can-i-specify-a-min-leafsize-in-a-decision-tree-and-also-optimize-it

评论： Rafael Cordero 2021-7-23

Hello all,

I was wondering if it is possible to optimize the decision tree hyperparameter of MinLeafSize whilst imposing a limit on this MinLeafSize.

I.e.: I would like to optimize the MinLeafSize parameter, but I dont want it to be smaller than e.g. 50. Is this possible?

Thank you

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Alan Weiss 2021-7-23

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/884009-how-can-i-specify-a-min-leafsize-in-a-decision-tree-and-also-optimize-it#answer_752429

Take a look at the hyperparameter optimization argument of fitctree. You can fit the MinLeafSize parameter. To set the range you want, as the documentation states, "Set nondefault parameters by passing a vector of optimizableVariable objects that have nondefault values." Follow the example.

Alan Weiss

MATLAB mathematical toolbox documentation