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

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

Answer 1

[Alan Weiss]

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

[Rafael Cordero]

Thank you!