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Preadjusted non-parametric estimation of a conditional distribution function

Noël Veraverbeke, Irène Gijbels, Marek Omelka

Journal of the Royal Statistical Society: Series B (Statistical Methodology) · 2014 · Volume 76 · Issue 2

DOI: 10.1111/rssb.12041

Abstract

The paper deals with non-parametric estimation of a conditional distribution function. We suggest a method of preadjusting the original observations non-parametrically through location and scale, to reduce the bias of the estimator. We derive the asymptotic properties of the estimator proposed. A simulation study investigating the finite sample performances of the estimators discussed is provided and reveals the gain that can be achieved. It is also shown how the idea of the preadjusting opens the path to improved estimators in other settings such as conditional quantile and density estimation, and conditional survival function estimation in the case of censored data.

Keywords

Conditional distribution, Empirical process, Kernel methods, Local linear weights, Smoothing

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