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Robustní statistika Gi* Getise a Orda×Lokální statistika Getis-Ord Gi* (analýza horkých míst)×
OborProstorová analýzaProstorová analýza
RodinaRegression modelRegression model
Rok vzniku1992 (base); robust variants circa 2000s–2010s1992–1995
TvůrceGetis & Ord (base statistic); robust extensions developed in subsequent spatial statistics literatureArthur Getis and J. Keith Ord
TypLocal spatial statisticLocal spatial association statistic
Původní zdrojGetis, A., & Ord, J. K. (1992). The analysis of spatial association by use of distance statistics. Geographical Analysis, 24(3), 189–206. DOI ↗Getis, A., & Ord, J. K. (1992). The analysis of spatial association by use of distance statistics. Geographical Analysis, 24(3), 189–206. DOI ↗
Další názvyRobust Gi*, Robust local Gi star, outlier-resistant hot spot analysis, robust local spatial autocorrelation Gi*Gi* statistic, Getis-Ord Gi*, local G-star, hot spot statistic
Příbuzné55
ShrnutíThe Robust Getis-Ord Gi* statistic extends the classical Gi* hot-spot measure to handle outliers in spatial data. By using robust estimators of the mean and variance — such as trimmed means, medians, or down-weighted influential observations — it identifies statistically significant spatial clusters of high or low values even when the attribute distribution contains extreme values that would distort the standard Gi*.The Local Getis-Ord Gi* statistic identifies statistically significant spatial clusters of high values (hot spots) and low values (cold spots) within a study area. Unlike global measures, it produces a z-score for every location, revealing where concentrated clustering occurs and with what statistical confidence.
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ScholarGatePorovnat metody: Robust Getis-Ord Gi* · Local Getis-Ord Gi*. Získáno 2026-06-19 z https://scholargate.app/cs/compare