विधियों की तुलना करें
चुनी हुई विधियों की आमने-सामने समीक्षा करें; भिन्नता वाली पंक्तियाँ रेखांकित हैं।
| गेटीस-ऑर्ड Gi* हॉट स्पॉट विश्लेषण× | गियरी का C स्थानिक स्वसहसंबंध (Geary's C Spatial Autocorrelation)× | |
|---|---|---|
| क्षेत्र | स्थानिक विश्लेषण | स्थानिक विश्लेषण |
| परिवार≠ | Regression model | Hypothesis test |
| उद्भव वर्ष≠ | 1992 | 1954 |
| प्रवर्तक≠ | Arthur Getis and J. Keith Ord | Roy C. Geary |
| प्रकार≠ | Local spatial statistic | Global spatial autocorrelation statistic |
| मौलिक स्रोत≠ | Getis, A. & Ord, J.K. (1992). The Analysis of Spatial Association by Use of Distance Statistics. Geographical Analysis, 24(3), 189–206. DOI ↗ | Geary, R. C. (1954). The contiguity ratio and statistical mapping. The Incorporated Statistician, 5(3), 115–146. DOI ↗ |
| उपनाम≠ | hot spot analysis, cold spot analysis, Gi* statistic, local Gi statistic | Geary contiguity ratio, Geary's contiguity ratio, global spatial autocorrelation, Geary C mekânsal otokorelasyon |
| संबंधित≠ | 4 | 2 |
| सारांश≠ | Getis-Ord Gi* is a local spatial statistic, introduced by Getis and Ord in 1992 and refined in 1995, that compares the value at each location and its neighbours against the global mean to identify statistically significant clusters of high values (hot spots) and low values (cold spots). | Geary's C is a global measure of spatial autocorrelation — whether nearby locations tend to have similar values — introduced by Roy Geary in 1954. Unlike Moran's I, which is built on the covariation of values around the mean, Geary's C is built on the squared differences between neighbouring values, making it more sensitive to local, short-range variation. Values below 1 indicate positive spatial autocorrelation (similar neighbours), near 1 indicate randomness, and above 1 indicate negative autocorrelation. |
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