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| Robustne C Geary’ego× | C Geary’ego× | |
|---|---|---|
| Dziedzina | Analiza przestrzenna | Analiza przestrzenna |
| Rodzina | Regression model | Regression model |
| Rok powstania≠ | 1954 (base); robust variants: 1990s–2000s | 1954 |
| Twórca≠ | Geary (1954); robust extensions by Anselin and spatial statisticians | Roy C. Geary |
| Typ≠ | Robust spatial autocorrelation statistic | Spatial autocorrelation statistic |
| Źródło pierwotne | Geary, R. C. (1954). The contiguity ratio and statistical mapping. The Incorporated Statistician, 5(3), 115–145. DOI ↗ | Geary, R. C. (1954). The Contiguity Ratio and Statistical Mapping. The Incorporated Statistician, 5(3), 115–145. link ↗ |
| Inne nazwy | robust Geary contiguity ratio, outlier-resistant Geary's C, robust spatial contiguity statistic, robust Geary C | Geary contiguity ratio, Geary C statistic, spatial contiguity ratio, Geary's c |
| Pokrewne≠ | 6 | 4 |
| Podsumowanie≠ | Robust Geary's C adapts the classical Geary contiguity ratio — a measure of spatial autocorrelation based on pairwise squared differences between neighbouring locations — to resist distortion by spatial outliers and influential observations. It retains the local sensitivity of Geary's C while producing more reliable inferences when the spatial data contain extreme values or non-normal distributions. | Geary's C is a global spatial autocorrelation statistic that measures whether nearby areal units share similar attribute values. Unlike Moran's I, it focuses on squared differences between adjacent pairs rather than cross-products of deviations from the mean, making it more sensitive to local dissimilarity and less influenced by global trends. |
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