研究了基于固定效应的纵向数据模分位点回归模型的参数估计及统计诊断问题.首先给出了参数估计的MM迭代算法,然后讨论了统计诊断中数据删除模型(CDM)和均值移模型(MSOM)的等价性问题,最后利用消炎镇痛药数据说明了方法的应用.
The parameter estimation and statistical diagnostics for quantile regression of longitudinal data models with fixed effects are presented in this paper.The MM algorithm of parameters is first given.Then,the equivalence issue about case deletion models(CDM)and mean shift outlier models(MSOM)is discussed.Finally,The plasma concentrations data is used to illustrate our results.