Exploring spatial patterning in data values - Spatial Data Analysis: An Introduction for GIS Users - page 120

Observation stations
Inland water

N

0 20 40 km

Figure 8.7 Locations of precipitation observations in July 2006.

160

140

120

100

80

60

40

z = 52.203 + 0.1162 y
r 2 = 0.4206

20

0

0 100 200 300 400 500 600 700

Elevation (m)

Figure 8.8 Elevation against July 2006 precipitation amount in Northern Ireland.

Akaike Information Criterion (AICc; Fotheringham et al. , 2002, Equation 4.21). h e
AICc allows for assessment of the number of degrees of freedom and the goodness of
i t of the model and it can be used to compare the performance of a global regression
model and GWR (Fotheringham et al. , 2002). h e geographically weighted band-
width of 9952.763 m was selected using the AICc in version 3.0 of the GWR sot ware.