1998 volume 30(11) pages 1905 – 1927
doi:10.1068/a301905

Cite as:
Fotheringham A S, Charlton M E, Brunsdon C, 1998, "Geographically weighted regression: a natural evolution of the expansion method for spatial data analysis" Environment and Planning A 30(11) 1905 – 1927

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Geographically weighted regression: a natural evolution of the expansion method for spatial data analysis

A S Fotheringham, M E Charlton, C Brunsdon

Received 18 December 1996; in revised form 22 May 1997

Abstract. Geographically weighted regression and the expansion method are two statistical techniques which can be used to examine the spatial variability of regression results across a region and so inform on the presence of spatial nonstationarity. Rather than accept one set of 'global' regression results, both techniques allow the possibility of producing 'local' regression results from any point within the region so that the output from the analysis is a set of mappable statistics which denote local relationships. Within the paper, the application of each technique to a set of health data from northeast England is compared. Geographically weighted regression is shown to produce more informative results regarding parameter variation over space.

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