کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
1146522 957515 2017 16 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Influence diagnostics and outlier tests for varying coefficient mixed models
ترجمه فارسی عنوان
تشخیص نفوذ و آزمون پرت برای مدل های متفاوت ضریب مخلوط
کلمات کلیدی
نفوذ شرطی؛ فاصله کوک؛ هویت"حذف = جایگزینی" ؛ تشخیص نفوذ. نفوذ مشترک؛ آزمون پرت
primary, 62G35; secondary, 62G08, 62G10Conditional influence; Cook’s distance; “Delete=Replace” identity; Influence diagnostics; Joint influence; Outlier tests
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات آنالیز عددی
چکیده انگلیسی

In this paper, we consider subset deletion diagnostics for fixed effects (coefficient functions), random effects and one variance component in varying coefficient mixed models (VCMMs). Some simple updated formulas are obtained, and based on which, Cook’s distance, joint influence and conditional influence are also investigated. Besides, since mean shift outlier models (MSOMs) are also efficient to detect outliers, we establish an equivalence between deletion models and MSOMs, which is not only suitable for fixed effects but also for random effects, and test statistics for outliers are then constructed. As a byproduct, we obtain the nonparametric “delete = replace” identity. Our influence diagnostics methods are illustrated through a simulated example and a real data set.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Multivariate Analysis - Volume 100, Issue 9, October 2009, Pages 2002–2017
نویسندگان
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