Chunk #131 — Features and Pitfalls — Scaled and Unscaled Importance Measures

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An introduction to recursive partitioning: rationale, application, and characteristics of classification and regression trees, bagging, and random forests.

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Secondly, for a “scaled” measure one may assume that its values are comparable over different studies – which is not the case for the z-score in random forests, that heavily depends on the choice of tuning parameters, as outlined in the next section.