Bandwidth selection for a class of difference-based variance estimators in the nonparametric regression: A possible approach

  • Authors:
  • M. Levine

  • Affiliations:
  • Department of Statistics, Purdue University, West Lafayette, IN 47907, USA

  • Venue:
  • Computational Statistics & Data Analysis
  • Year:
  • 2006

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Abstract

A possible approach to bandwidth selection for difference-based variance estimators in the nonparametric regression is proposed. The approach is based on the crossvalidation-type idea modified for the case of correlated data. The method is compared to an alternative plug-in style method. Difficulties in implementing the latter are highlighted and it is argued that the proposed method represents a better alternative. Simulations for several models are given that illustrate good practical performance of the proposed method.