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| Robust Morans I× | Rumslig autokorrelation× | |
|---|---|---|
| Ämnesområde | Rumslig analys | Rumslig analys |
| Familj | Regression model | Regression model |
| Ursprungsår≠ | 1990s–2000s | 1950 |
| Upphovsperson≠ | Extension of Moran (1950); robust adaptations developed in spatial statistics literature | P. A. P. Moran (global measure, 1950); Roy Geary (Geary's C, 1954); Luc Anselin (LISA, 1995) |
| Typ≠ | Robust spatial autocorrelation statistic | Spatial statistic / exploratory spatial data analysis |
| Ursprungskälla≠ | Anselin, L. (1995). Local indicators of spatial association—LISA. Geographical Analysis, 27(2), 93–115. DOI ↗ | Moran, P. A. P. (1950). Notes on continuous stochastic phenomena. Biometrika, 37(1/2), 17–23. DOI ↗ |
| Alias | outlier-resistant Moran's I, robust spatial autocorrelation test, median-based Moran statistic, robust global spatial association | spatial dependence, geographic autocorrelation, spatial clustering measure, SA |
| Närliggande≠ | 6 | 5 |
| Sammanfattning≠ | Robust Moran's I is an outlier-resistant adaptation of the classic Moran's I spatial autocorrelation statistic. By replacing the standard mean-based standardization with resistant measures of center and spread, it detects genuine geographic clustering without being distorted by a small number of extreme values in the attribute of interest. | Spatial autocorrelation quantifies the degree to which a variable's values at nearby locations resemble each other more (positive autocorrelation) or less (negative autocorrelation) than expected by chance. Global indices such as Moran's I summarise the pattern across the entire study area, while local variants reveal clusters and outliers at the level of individual observations. |
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