A Tour of ArcGIS Add-in:
Geographically and Temporally
Weighted Regression (GTWR Beta
1.0)
By Bo Huang
The Chinese University of Hong Kong
E-mail: bohuang@cuhk.edu.hk
Introduction
• Geographically and Temporally Weighted Regression
(GTWR) is a local linear regression model that can account
for both spatial and temporal non-stationarity
simultaneously.
• The GTWR design embodies a local weighting scheme
wherein Geographically Weighted Regression (GWR) and
temporally weighted regression (TWR) become special
cases of GTWR.
• GTWR can support both point and panel data. If it is panel
data, combine the records in all the cross-sections into
one file. Each record should have three fields representing
X coordinate, Y coordinate and Time-stamp, respectively.
References
• For more details about GTWR, please
refer to the following articles:
Huang, B., Wu, B., and Barry, M., 2010.
Geographically and Temporally Weighted
Regression for modeling spatio-temporal
variation in house prices. International Journal of
Geographical Information Science, 24(3): 383 –
401.
References
Wang, H. X., Wang, J. D., and Huang, B., 2012. Prediction
for spatio-temporal models with autoregression in errors.
Journal of Nonparametric Statistics, 24(1): 217-244.
Wu, B., Li, R. R., and Huang, B., 2014. A Geographically
and Temporally Weighted Autoregressive Model with
application to housing prices. International Journal of
Geographical Information Science, 28(5): 1186-1204.
Chu, H. J., Huang, B., Lin, C. Y., 2015. Modeling the spatio-
temporal heterogeneity in the PM10-PM2.5 relationship.
Atmospheric Environment, 102: 176-182.
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