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| Global Moran's I× | Moran's I× | |
|---|---|---|
| Fagområde | Rumlig analyse | Rumlig analyse |
| Familie | Regression model | Regression model |
| Oprindelsesår | 1950 | 1950 |
| Ophavsperson≠ | Patrick Alfred Pierce Moran | Patrick A. P. Moran |
| Type≠ | Global spatial autocorrelation test / index | Spatial autocorrelation statistic |
| Oprindelig kilde | Moran, P. A. P. (1950). Notes on continuous stochastic phenomena. Biometrika, 37(1/2), 17–23. DOI ↗ | Moran, P. A. P. (1950). Notes on continuous stochastic phenomena. Biometrika, 37(1/2), 17–23. DOI ↗ |
| Aliasser | Moran's I, global spatial autocorrelation index, Moran index, GMI | Moran's I statistic, global Moran's I, spatial autocorrelation index, Moran index |
| Relaterede | 6 | 6 |
| Resumé≠ | 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. | 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. |
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