How can I specify a Min LeafSize in a decision tree and also optimize it?
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Rafael Cordero
on 22 Jul 2021
Commented: Rafael Cordero
on 23 Jul 2021
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
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Accepted Answer
Alan Weiss
on 23 Jul 2021
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
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