Competitors and Surrogates

It should be noted that when selecting splits, classification and regression trees may track the competitive splits at each decision point along the way. A competitive split is one that results in nearly as pure a node as the chosen split. Classification and regression trees may also keep track of surrogate variables. Use of a surrogate variable at a given split results in a similar node impurity measure (as would a competitor) but also mimics the chosen split itself in terms of which and how many observations go which way in the split.

Was this article helpful?

0 0
Solar Power Sensation V2

Solar Power Sensation V2

This is a product all about solar power. Within this product you will get 24 videos, 5 guides, reviews and much more. This product is great for affiliate marketers who is trying to market products all about alternative energy.

Get My Free Ebook

Post a comment