手法を比較

	ロバストなMoran's I	Geary's C
分野	空間分析	空間分析
系統	Regression model	Regression model
提唱年	1990s–2000s	1954
提唱者	Extension of Moran (1950); robust adaptations developed in spatial statistics literature	Roy C. Geary
種類	Robust spatial autocorrelation statistic	Spatial autocorrelation statistic
原典	Anselin, L. (1995). Local indicators of spatial association—LISA. Geographical Analysis, 27(2), 93–115.	Geary, R. C. (1954). The Contiguity Ratio and Statistical Mapping. The Incorporated Statistician, 5(3), 115–145.
別名	outlier-resistant Moran's I, robust spatial autocorrelation test, median-based Moran statistic, robust global spatial association	Geary contiguity ratio, Geary C statistic, spatial contiguity ratio, Geary's c
関連	6	4
概要	Robust Moran's I is an outlier-resistant adaptation of the classic Moran's I spatial autocorrelation statistic. By replacing the standard mean-based standardization with resistant measures of center and spread, it detects genuine geographic clustering without being distorted by a small number of extreme values in the attribute of interest.	Geary's C is a global spatial autocorrelation statistic that measures whether nearby areal units share similar attribute values. Unlike Moran's I, it focuses on squared differences between adjacent pairs rather than cross-products of deviations from the mean, making it more sensitive to local dissimilarity and less influenced by global trends.