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A principal varying-coefficient model for quantile regression: Joint variable selection and dimension reduction

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  • Zhao, Weihua
  • Jiang, Xuejun
  • Lian, Heng

Abstract

A principal varying-coefficient model for quantile regression based on regression splines estimation is proposed. Convergence rate and local asymptotics for the coefficient functions are then derived. Furthermore, penalization is used to obtain joint variable selection and dimension reduction in quantile varying-coefficient models. A group coordinate descent algorithm is adopted for a computationally efficient implementation. Simulations are carried out to investigate the finite sample performance and an application on a real data set is presented.

Suggested Citation

  • Zhao, Weihua & Jiang, Xuejun & Lian, Heng, 2018. "A principal varying-coefficient model for quantile regression: Joint variable selection and dimension reduction," Computational Statistics & Data Analysis, Elsevier, vol. 127(C), pages 269-280.
    • Handle: RePEc:eee:csdana:v:127:y:2018:i:c:p:269-280
    DOI: 10.1016/j.csda.2018.05.021
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    1. Weihua Zhao & Rui Li & Heng Lian, 2022. "High-dimensional quantile varying-coefficient models with dimension reduction," Metrika: International Journal for Theoretical and Applied Statistics, Springer, vol. 85(1), pages 1-19, January.

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