手法を比較

	ベイズ的 Geary's C	Geary's C
分野	空間分析	空間分析
系統	Regression model	Regression model
提唱年	1954 (Bayesian framing: 2000s onward)	1954
提唱者	Geary (1954); Bayesian extension via hierarchical spatial modeling literature	Roy C. Geary
種類	Bayesian spatial autocorrelation statistic	Spatial autocorrelation statistic
原典	Geary, R. C. (1954). The contiguity ratio and statistical mapping. The Incorporated Statistician, 5(3), 115–145.	Geary, R. C. (1954). The Contiguity Ratio and Statistical Mapping. The Incorporated Statistician, 5(3), 115–145.
別名	Bayesian Geary C, Bayesian spatial contiguity statistic, Geary's C (Bayesian), Bayesian contiguity ratio	Geary contiguity ratio, Geary C statistic, spatial contiguity ratio, Geary's c
関連	6	4
概要	Bayesian Geary's C embeds the classical Geary contiguity ratio within a Bayesian hierarchical framework. Instead of a single point estimate and asymptotic p-value, it produces a posterior distribution over the statistic (or over spatially structured random effects), quantifying uncertainty about spatial autocorrelation while formally incorporating prior knowledge about the spatial process.	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.