Asymptotically Optimal Estimators of General Regression Functionals

M. Falk

Journal of Multivariate Analysis, 1993, vol. 47, issue 1, 59-81

Abstract: Let X, Y be random vectors with values in d and 1, respectively, and denote by F(· x) the conditional distribution function of Y given X = x. It is well known that the kernel estimator of the regression functional [theta](x) := T(F(· x)), based on n independent replicates of (X, Y), has optimal asymptotic accuracy in case of T being the mean value and quantile functional. In this paper we discuss conditions under which the kernel estimator has optimal asymptotic accuracy, locally and globally, for a general class of functionals T, containing mean and quantile as particular examples. A weak convergence result for the maximum error over a compact interval completes the paper.

Date: 1993
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