Abstract
Geographically weighted regression (GWR) extends the familiar regression framework by estimating a set of parameters for any number of locations within a study area, rather than producing a single parameter estimate for each relationship specified in the model. Recent literature has suggested that GWR is highly susceptible to the effects of multicollinearity between explanatory variables and has proposed a series of local measures of multicollinearity as an indicator of potential problems. In this paper, we employ a controlled simulation to demonstrate that GWR is in fact very robust to the effects of multicollinearity. Consequently, the contention that GWR is highly susceptible to multicollinearity issues needs rethinking.
Original language | English (US) |
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Pages (from-to) | 303-329 |
Number of pages | 27 |
Journal | Journal of Geographical Systems |
Volume | 18 |
Issue number | 4 |
DOIs | |
State | Published - Oct 1 2016 |
Keywords
- Collinearity
- GWR
- Geographically weighted regression
- Regression diagnostics
ASJC Scopus subject areas
- Geography, Planning and Development
- Earth-Surface Processes