Local composite quantile regression for the varying coefficient model(变系数模型的局部组合分位数估计)
变系数模型推广了经典的线性模型,能灵活描绘变量间的非线性和交互性特征.考虑跨越一系列分位点的变系数模型的稳健估计,采用局部组合分位数回归方法,给出了该模型估计的局部Bahadur表示和渐近正态分布性质.证明了所得的估计量能够满足非参数收敛率要求.同时,模型计算容易执行且不需要指定误差分布的具体形式.进而推导了最优窗宽的表达式并提供了 一个基于分位数交叉核实准则的窗宽选择方法.通过Monte Carlo模拟,检验了局部组合分位数估计变系数模型的有限样本性质....
Main Author: | XIEQichang(解其昌) |
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Format: | Article |
Language: | zho |
Published: |
Zhejiang University Press
2015-05-01
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Series: | Zhejiang Daxue xuebao. Lixue ban |
Subjects: | |
Online Access: | https://doi.org/10.3785/j.issn.1008-9497.2015.03.008 |
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