手法を比較

	空間時間的 Geary の C	時空間的空間自己相関
分野	空間分析	空間分析
系統	Regression model	Regression model
提唱年	1954 / 2010s	1981–1992
提唱者	Geary (1954); extended to space-time by Anselin and others	Cliff & Ord; extended by Anselin and others
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.	Clifford, P., Richardson, S., & Hemon, D. (1989). Assessing the significance of the correlation between two spatial processes. Biometrics, 45(1), 123–134.
別名	ST-Geary's C, spatiotemporal Geary C, space-time contiguity ratio, space-time local spatial autocorrelation	STSA, spatiotemporal autocorrelation, space-time Moran's I, temporal spatial dependence
関連	6	5
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.	Space-Time Spatial Autocorrelation extends classic spatial autocorrelation measures — most notably Moran's I — to data that vary across both geographic units and time periods. It detects whether nearby locations that are also temporally close tend to share similar attribute values, revealing clusters, trends, or anomalies that purely spatial or purely temporal analyses would miss.