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R Statistical Application Development by Example Beginner's Guide by Prabhanjan Narayanachar Tattar

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Chapter 9. Classification and Regression Trees

In the previous chapters, we focused on regression models, and the majority of the emphasis was on the linearity assumption. In what appears as the next extension must be non-linear models, we will instead deviate to recursive partitioning techniques, which are a bit more flexible than the non-linear generalization of the models considered in the earlier chapters. Of course, the recursive partitioning techniques, in most cases, may be viewed as non-linear models.

We will first introduce the notion of recursive partitions through a hypothetical dataset. It is apparent that the earlier approach of the linear models changes in an entirely different way with the functioning of the recursive partitions. ...

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