aoristic: aoristic analysis with spatial output (kml)

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'Aoristic' is one of the past tenses in Greek and represents an uncertain occurrence time. Aoristic analysis suggested by Ratcliffe (2002) is a method to analyze events that do not have exact times of occurrence but have starting times and ending times. For example, a property crime database (e.g., burglary) typically has a starting time and ending time of the crime that could have occurred. Aoristic analysis allocates the probability of a crime incident occurring at every hour over a 24-hour period. The probability is aggregated over a study area to create an aoristic graph. Using crime incident data with lat/lon, DateTimeFrom, and DateTimeTo, functions in this package create a total of three (3) kml files and corresponding aoristic graphs: 1) density and contour; 2) grid count; and 3) shapefile boundary. (see also: https://sites.google.com/site/georgekick/software)

Author
George Kikuchi
Date of publication
2015-01-10 12:06:14
Maintainer
George Kikuchi <gkikuchi@csufresno.edu>
License
GPL (>= 2)
Version
0.6

View on CRAN

Man pages

aoristic
Sample data of crime (df) and council district (spdf)
aoristic.all.graph
Creating a data frame for an aoristic graph using all data
aoristic.density
aoristic graph by grid count
aoristic.df
creating a data.frame for aoristic analysis
aoristic.grid
aoristic graph by grid count
aoristic-package
Creating a kml file with aoristic graph: Aoristic Analysis...
aoristic.shp
aoristic graph by shapefile boundary
aoristic.spdf
creating a spatial.polygon.data.frame for aoristic analysis
arlington
arlington burglary incident data (data frame)
CouncilDistrict
Council district (spatial polygon data frame)

Files in this package

aoristic
aoristic/inst
aoristic/inst/extdata
aoristic/inst/extdata/arlington.Rdata
aoristic/inst/extdata/arlington.Rda
aoristic/NAMESPACE
aoristic/demo
aoristic/demo/aoristic.R
aoristic/demo/00Index
aoristic/data
aoristic/data/aoristic.rda
aoristic/R
aoristic/R/aoristic.all.graph.R
aoristic/R/aoristic.shp.R
aoristic/R/aoristic.df.R
aoristic/R/aoristic.spdf.R
aoristic/R/aoristic-package.R
aoristic/R/aoristic.density.R
aoristic/R/aoristic.grid.R
aoristic/README.md
aoristic/MD5
aoristic/DESCRIPTION
aoristic/man
aoristic/man/arlington.Rd
aoristic/man/aoristic.all.graph.Rd
aoristic/man/aoristic.spdf.Rd
aoristic/man/aoristic.df.Rd
aoristic/man/aoristic.grid.Rd
aoristic/man/aoristic.density.Rd
aoristic/man/aoristic.shp.Rd
aoristic/man/aoristic-package.Rd
aoristic/man/CouncilDistrict.Rd
aoristic/man/aoristic.Rd