手法を比較

	ロバストケンドールタウ順位相関係数	ケンドールの順位相関係数 (Kendall's Tau Rank Correlation)
分野	統計学	統計学
系統	Hypothesis test	Hypothesis test
提唱年	1990s–2000s	1938
提唱者	Rand Wilcox; Croux & Dehon (robust extensions)	Maurice G. Kendall
種類	Robust rank correlation	Nonparametric rank correlation
原典	Wilcox, R. R. (2012). Introduction to Robust Estimation and Hypothesis Testing (3rd ed.). Academic Press. ISBN: 978-0123869838	Kendall, M. G. (1938). A new measure of rank correlation. Biometrika, 30(1/2), 81–93.
別名	robust tau, skipped Kendall's tau, Winsorized Kendall's tau, outlier-resistant rank correlation	Kendall tau, Kendall rank correlation, tau-b, tau-c
関連	5	4
概要	Robust Kendall's tau estimates the monotone association between two variables using rank-based concordance counts, but augments the standard procedure with outlier detection or Winsorization so that a small number of extreme observations cannot distort the result. It is appropriate when data are ordinal or continuous and bivariate outliers are plausible.	Kendall's tau is a nonparametric measure of the ordinal association between two variables. It quantifies how consistently the relative ordering of one variable matches the ordering of another across all observation pairs, making it robust to outliers and suitable for ordinal or non-normally distributed data.