A jump-detecting procedure based on spline estimation

Shujie Ma and Lijian Yang

Journal of Nonparametric Statistics, 2011, vol. 23, issue 1, 67-81

Abstract: In a random-design nonparametric regression model, procedures for detecting jumps in the regression function via constant and linear spline estimation method are proposed based on the maximal differences of the spline estimators among neighbouring knots, the limiting distributions of which are obtained when the regression function is smooth. Simulation experiments provide strong evidence that corroborates with the asymptotic theory, while the computing is extremely fast. The detecting procedure is illustrated by analysing the thickness of pennies data set.

Date: 2011
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DOI: 10.1080/10485250903571978

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