| (a) The Density of Events from a Point of Interest (b) Edge Effects
Figure 2. Population Density and Retail Outlet Locations in Vancouver. Darker areas indicate higher population density, and white dots represent retail outlets.
Figure 3. A Comparison of Strong versus Weak Cases Clustering Defined by Controls
 
(a) Cases (White Crosses) Strongly Clustered (b) Cases (White Crosses) Weakly Clustered
Figure 4. Vancouver Coffee Shops
 
(a) Coffee Shop Locations (open dots) and All Other Retailers (solid dots)
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(b)Kuldorff’s D (solid line) with 90% (inner dotted lines) and 99% (outer dotted lines) Confidence Intervals
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Figure 5. Vancouver Gasoline Stations
 
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