Statistics and Its Interface

Volume 15 (2022)

Number 2

Discussion of “Estimation of Hilbertian varying coefficient models”

Pages: 157 – 158



Ming-Yen Cheng (Hong Kong Baptist University)


The suggested model covers a broad range of settings in functional data analysis and the proposed smooth backfitting method is advantageous. Here I discuss its relationship with several alternative approaches.


functional data, random objects, semiparametric regression, structure identification

The author was supported by the Research Grants Council GRF grant HKBU12304120, and by the Hong Kong Baptist University grant RC-ICRS-17-18.

Received 29 March 2021

Accepted 22 April 2021

Published 11 January 2022