Zhao Y, Lee A H, Hui Y V
Faculty of Science, Northern Territory University, Darwin, Australia.
Biometrics. 1994 Dec;50(4):1117-28.
We study influence diagnostics for generalized linear models when the true covariates are unobservable but measured with error. Based on the bias-corrected estimation of model parameters, diagnostic measures are developed to identify outlying and influential observations. The magnitude of influence is then assessed via a simulated envelope approach. The proposed diagnostic procedure is illustrated on two examples.
我们研究当真实协变量不可观测但存在测量误差时广义线性模型的影响诊断。基于模型参数的偏差校正估计,开发了诊断度量以识别异常和有影响的观测值。然后通过模拟包络方法评估影响的大小。所提出的诊断程序在两个例子中进行了说明。