Regression model
稳健方差分析（Welch & Trimmed Mean）
当正态性和等方差的经典假设不成立时，稳健方差分析比较三个或更多组的集中趋势。它结合了Welch在1951年提出的经异方差调整的Welch统计量，以及Wilcox提出的截尾均值检验，在存在异常值和组间离散程度不均的情况下提供可靠的比较。
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来源
- Welch, B. L. (1951). On the comparison of several mean values: an alternative approach. Biometrika, 38(3/4), 330-336. DOI: 10.1093/biomet/38.3-4.330 ↗
- Wilcox, R. R. (2012). Introduction to Robust Estimation and Hypothesis Testing (3rd ed.). Academic Press. ISBN: 978-0123869838
如何引用本页
ScholarGate. (2026, June 1). Robust Analysis of Variance (Welch & Trimmed Mean). ScholarGate. https://scholargate.app/zh/statistics/robust-anova
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