مقایسهٔ روشها
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| شاخص C گری مقاوم× | شاخص I موران× | |
|---|---|---|
| حوزه | تحلیل فضایی | تحلیل فضایی |
| خانواده | Regression model | Regression model |
| سال پیدایش≠ | 1954 (base); robust variants: 1990s–2000s | 1950 |
| پدیدآور≠ | Geary (1954); robust extensions by Anselin and spatial statisticians | Patrick A. P. Moran |
| نوع≠ | Robust spatial autocorrelation statistic | Spatial autocorrelation statistic |
| منبع بنیادین≠ | Geary, R. C. (1954). The contiguity ratio and statistical mapping. The Incorporated Statistician, 5(3), 115–145. DOI ↗ | Moran, P. A. P. (1950). Notes on continuous stochastic phenomena. Biometrika, 37(1/2), 17–23. DOI ↗ |
| نامهای دیگر | robust Geary contiguity ratio, outlier-resistant Geary's C, robust spatial contiguity statistic, robust Geary C | Moran's I statistic, global Moran's I, spatial autocorrelation index, Moran index |
| مرتبط | 6 | 6 |
| خلاصه≠ | 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. | 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. |
| ScholarGateمجموعهداده ↗ |
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