手法を比較

	ウィンザ法（Winsorized Estimation）	順列検定（ランダム化検定）
分野	統計学	統計学
系統	Regression model	Regression model
提唱年	1960	2005
提唱者	Dixon (1960); robust estimation tradition (Wilcox)	Good (2005); Edgington & Onghena (2007); resampling tradition
種類	Robust location/scale estimator	Nonparametric resampling test
原典	Dixon, W. J. (1960). Simplified Estimation from Censored Normal Samples. Annals of Mathematical Statistics, 31(2), 385-391.	Good, P. (2005). Permutation, Parametric and Bootstrap Tests of Hypotheses (3rd ed.). Springer. ISBN: 978-0387202792
別名	winsorization, winsorized mean, Winsorize Edilmiş Tahmin	randomization test, exact permutation test, re-randomization test, Permütasyon Testi
関連	5	5
概要	Winsorized estimation is a robust technique that reduces the influence of outliers by clamping the extreme percentiles of a distribution to a chosen threshold. Introduced by Dixon (1960) and developed in the robust-estimation tradition of Wilcox, it keeps every observation in the sample rather than discarding any.	The permutation test is a nonparametric resampling procedure that builds the sampling distribution of a test statistic directly from the data by repeatedly shuffling the group labels. Developed in the resampling tradition and treated systematically by Good (2005) and Edgington & Onghena (2007), it requires no parametric distributional assumption and yields an exact p-value.