Standard Article

Smoothing

Statistical and Numerical Computing

  1. Karen Kafadar

Published Online: 15 JAN 2013

DOI: 10.1002/9780470057339.vas029.pub2

Encyclopedia of Environmetrics

Encyclopedia of Environmetrics

How to Cite

Kafadar, K. 2013. Smoothing . Encyclopedia of Environmetrics. 5.

Author Information

  1. Indiana University, Bloomington, IN, USA

Publication History

  1. Published Online: 15 JAN 2013

Abstract

This article describes smoothing as an exploratory tool in data analysis, including an underlying model that motivates the need for smoothing, the goals and characteristics of good smoothers, general classes of smoothers (linear and nonlinear), and illustrations of the value of smoothing. Smoothing is related to the concepts of general fitting, parametric regression, and nonparametric regression, and the smoothers are illustrated as both one- and two-dimensional data sets. Some insight is offered on choosing smoothing parameters, and some resources for computing smoothers and further references are also provided.