So sánh phương pháp

	Thống kê Gi* Toàn cục Getis-Ord	Global Moran's I
Lĩnh vực	Phân tích không gian	Phân tích không gian
Họ	Regression model	Regression model
Năm ra đời	1992	1950
Người khởi xướng	Arthur Getis and J. Keith Ord	Patrick Alfred Pierce Moran
Loại	Global spatial clustering statistic	Global spatial autocorrelation test / index
Công trình gốc	Getis, A., & Ord, J. K. (1992). The analysis of spatial association by use of distance statistics. Geographical Analysis, 24(3), 189-206.	Moran, P. A. P. (1950). Notes on continuous stochastic phenomena. Biometrika, 37(1/2), 17–23.
Tên gọi khác	Global G statistic, Getis-Ord General G, General G*, Global spatial clustering statistic	Moran's I, global spatial autocorrelation index, Moran index, GMI
Liên quan	5	6
Tóm tắt	The Global Getis-Ord Gi* statistic measures the overall degree of spatial clustering of high or low values across an entire study region. It answers whether the study area, taken as a whole, exhibits significant concentration of high values (hot clustering) or low values (cold clustering), returning a single summary Z-score for the entire dataset.	Global Moran's I is the most widely used single-number summary of spatial autocorrelation across an entire study area. It compares the attribute value at each location with values at neighbouring locations using a spatial weights matrix, and returns a statistic ranging from −1 (perfect dispersion) through 0 (spatial randomness) to +1 (perfect clustering). A significance test determines whether the observed pattern is stronger than random chance.