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Explanation predictorImportance - Ensemble Learning with Decision Trees

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Dario Walter
Dario Walter on 20 Aug 2020
Answered: Prabhan Purwar on 28 Aug 2020
Hey,
I try to understand what the function predictorImportance is doing when using Ensemble Learning with Decision Trees. The Matlab documentation is not really comprehensive :/. What is meant by "risk"?

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Answers (1)

Prabhan Purwar
Prabhan Purwar on 28 Aug 2020
Hi,
Our implementation of 'predictorImportance' can be viewed directly within the 'TreeImpl' class.
This file is located in your MATLAB installation folder:
MATLAB\R2017a\toolbox\stats\classreg\+classreg\+learning\+impl\TreeImpl.m
(Kindly fill up the matlab version accordingly).
You can use Control + F in order to find "predictorImportance"; there you can view the implementation.
Thanks.

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