手法を比較

	パネルGearyのC空間自己相関	Geary's C
分野	空間分析	空間分析
系統	Regression model	Regression model
提唱年	1954 (base); 2000s (panel extension)	1954
提唱者	R. C. Geary (1954); panel extension in spatial econometrics literature	Roy C. Geary
種類	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	Geary's C for panel data, spatial Geary C panel, panel spatial contiguity ratio, panel Geary contiguity statistic	Geary contiguity ratio, Geary C statistic, spatial contiguity ratio, Geary's c
関連	4	4
概要	Panel Geary's C extends the classic Geary contiguity ratio to panel datasets, measuring spatial autocorrelation across georeferenced units (regions, cities, countries) observed over multiple time periods. It detects whether neighboring units tend to have similar values, pooling or averaging evidence across the temporal dimension to yield more powerful inference than a single cross-section.	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.