Spatial Hotspots

Nov-18 : In this lesson, we will study methods for spatial hotspot/cluster detection.

Resources

Getis Ord handout
Getis Ord spreadsheet
spdep package localG man and localG page
ArcGIS Getis Ord
GeoDa Local G caution: this page appears to give an incorrect simpler version of the statistic from 1992. The software implements the full 1995 formula.
Casey Lilley’s spatial autocorrelation in R
Michael Minn’s basic point pattern analysis in R
Michael Kearney’s intro to rtweet

References

Ord, J. K., and A. Getis. 1995. Local Spatial Autocorrelation Statistics: Distributional Issues and an Application. Geographical Analysis 27 (4):286–306. DOI:10.1111/j.1538-4632.1995.tb00912.x
Rogerson, P. A. 2006. Statistical Methods for Geography: A Student’s Guide. SAGE Publications. (this has a new addition, 2020)

Note Add Bonferroni correction and Kulldorff Spatial Scan Statistic