手法を比較

	空間時間的 Geary の C	モランのI
分野	空間分析	空間分析
系統	Regression model	Regression model
提唱年	1954 / 2010s	1950
提唱者	Geary (1954); extended to space-time by Anselin and others	Patrick A. P. Moran
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.	Moran, P. A. P. (1950). Notes on continuous stochastic phenomena. Biometrika, 37(1/2), 17–23.
別名	ST-Geary's C, spatiotemporal Geary C, space-time contiguity ratio, space-time local spatial autocorrelation	Moran's I statistic, global Moran's I, spatial autocorrelation index, Moran index
関連	6	6
概要	Space-Time Geary's C extends the classical Geary contiguity ratio to panel or longitudinal spatial data, measuring autocorrelation across both geographic neighbors and adjacent time periods simultaneously. Values below 1 indicate positive space-time clustering; values above 1 indicate dispersion, and a value near 1 suggests random arrangement across the space-time lattice.	Moran's I is the standard global statistic for detecting spatial autocorrelation: whether nearby locations tend to share similar values. The index ranges from approximately −1 (perfect dispersion) through 0 (spatial randomness) to +1 (perfect clustering), allowing researchers to test whether a geographic pattern differs from complete spatial randomness with a single, interpretable number.