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| Moran's I× | 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≠ | 1950 | 1992–1995 |
| 提出者≠ | Patrick A. P. Moran | Arthur Getis and J. Keith Ord |
| 类型≠ | Spatial autocorrelation statistic | Local spatial association statistic |
| 开创性文献≠ | Moran, P. A. P. (1950). Notes on continuous stochastic phenomena. Biometrika, 37(1/2), 17–23. 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 | Moran's I statistic, global Moran's I, spatial autocorrelation index, Moran index | Gi* statistic, Getis-Ord Gi*, local G-star, hot spot statistic |
| 相关≠ | 6 | 5 |
| 摘要≠ | 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. | 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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