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

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.

• Type: Journal
• Year: 2006
• Where: CSDA
• Authors: M. Levine
• Keywords: CSDA 2006, Difference-based Variance Estimators, Plug-in Style Method, Possible Approach