Mapping local regression for spatial object-pairs |
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| Authors: | Jie Lin Robert G Cromley Dean M Hanink |
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| Institution: | 1. School of Earth Sciences, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang, 310027, People’s Republic of China;2. Department of Geography, University of Connecticut, 215 Glenbrook Road, Storrs, CT 06269, USA |
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| Abstract: | Local regression methods such as geographically weighted regression (GWR) can provide specific information about individual locations (or places) in spatial analysis that is useful for mapping nonstationary covariate relationships. However, the distance-based weighting schemes used in GWR are only adaptable for spatial objects that are point or area features. In particular, spatial object-pairs pose a challenge for local analysis because they have a linear dimensionality rather than a point dimensionality. This paper proposes using an alternative local regression model – quantile regression (QR) – for investigating the stationarity of regression parameters with respect to these linear features as well as facilitating the visualization of the results. An empirical example of a gravity model analysis of trade patterns within Europe is used to illustrate the utility of the proposed method. |
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| Keywords: | Spatial object-pairs visualization quantile regression gravity model |
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