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| 局部热点分析 (Getis-Ord Gi*)× | 局部Getis-Ord Gi* (热点分析)× | |
|---|---|---|
| 领域 | 空间分析 | 空间分析 |
| 方法族 | Regression model | Regression model |
| 起源年份≠ | 1992-1995 | 1992–1995 |
| 提出者≠ | Getis & Ord; Ord & Getis | Arthur Getis and J. Keith Ord |
| 类型≠ | Local spatial statistic | Local spatial association statistic |
| 开创性文献≠ | Ord, J. K., & Getis, A. (1995). Local spatial autocorrelation statistics: Distributional issues and an application. Geographical Analysis, 27(4), 286-306. DOI ↗ | Getis, A., & Ord, J. K. (1992). The analysis of spatial association by use of distance statistics. Geographical Analysis, 24(3), 189–206. DOI ↗ |
| 别名 | local Getis-Ord Gi*, Gi* statistic, spatial hot spot detection, local spatial clustering | Gi* statistic, Getis-Ord Gi*, local G-star, hot spot statistic |
| 相关 | 5 | 5 |
| 摘要≠ | Local Hot Spot Analysis uses the Getis-Ord Gi* statistic to identify specific geographic locations where high or low values cluster together more than expected by chance. Unlike global measures that return a single summary for the whole study area, this local statistic produces a z-score for each feature, pinpointing exactly where statistically significant hot spots and cold spots occur. | The Local Getis-Ord Gi* statistic identifies statistically significant spatial clusters of high values (hot spots) and low values (cold spots) within a study area. Unlike global measures, it produces a z-score for every location, revealing where concentrated clustering occurs and with what statistical confidence. |
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