Smoothing Techniques: With Implementation in S - Tapa dura

Sinopsis

The author has attempted to present a book that provides a non-technical introduction into the area of nonparametric density and regression function estimation. The application of these methods is discussed in terms of the S computing environment. Smoothing in high dimensions faces the problem of data sparseness. A principal feature of smoothing, the averaging of data points in a prescribed neighbourhood, is not really practicable in dimensions greater than three. Additive models provide a way out of this dilemma, but they require highly effective algorithms. For this purpose, the method of WARPing (Weighted Averaging using Rounded Points) is described in detail in the text.

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