Chapter 4: Mapping Crime and Geographic Information Systems
Data transformations using square roots or logarithms smooth data and reduce problems associated with having both very large and very small values in
a distribution The effect may change the distribution to a more normal, or bell-shaped, curve.
The need for more integration of statistical tools is gradually receiving more recognition, and the problem should diminish over time. For example, a new package known as Regional Crime Analysis GIS (RCAGIS) developed for the Baltimore-Washington, D.C., region has an embedded statistical package, CRIMESTAT.
Also, the S+ package by MathSoft® interfaces with ArcView.
Hot spots may be split by jurisdiction boundaries in such a way that they fail
to meet hot spot criteria on either side of the line.
Reminder: Small-scale maps show large areas, large-scale maps show small areas.
This problem of overlapping points can be fixed with software manipulation.
Regions of all nations have FIPS codes. Greater London, U.K., for example, is UK17.