spatial dependence
[/ˈspeɪʃəl dɪˈpɛndəns/]
nounpl: spatial dependences
dependência espacial
1. A statistical phenomenon where values of a variable at different locations are not independent but are correlated based on their geographic proximity or spatial arrangement
The study revealed significant spatial dependence in housing prices across the city neighborhoods.
O estudo revelou dependência espacial significativa nos preços das casas nos bairros da cidade.
2. In spatial analysis and geostatistics, the property that observations closer together in space tend to be more similar than those farther apart
Spatial dependence must be accounted for when conducting regression analysis on geographic data.
A dependência espacial deve ser considerada ao realizar análise de regressão em dados geográficos.
3. The degree to which the value of a variable at one location influences or is influenced by values at nearby locations
Moran's I test is commonly used to measure spatial dependence in environmental studies.
O teste I de Moran é comumente usado para medir dependência espacial em estudos ambientais.
Spatial dependence is a fundamental concept in quantitative geography, regional economics, and environmental science in both Brazil and the USA. It gained prominence with the development of Geographic Information Systems (GIS) and spatial statistics. In Brazilian universities, this concept is particularly important in fields like geography, urban planning, and agricultural research. The term reflects a shift from classical statistics that assumes independence of observations toward methods that explicitly model geographic relationships.
Related Idioms & Phrases
Tobler's first law of geography
Everything is related to everything else, but near things are more related than distant things
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