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RapidPolygonLookup  

POLYGON LOOKUP USING KD TREES
View on CRAN: Click here


Download and install RapidPolygonLookup package within the R console
Install from CRAN:
install.packages("RapidPolygonLookup")

Install from Github:
library("remotes")
install_github("cran/RapidPolygonLookup")

Install by package version:
library("remotes")
install_version("RapidPolygonLookup", "0.1.1")



Attach the package and use:
library("RapidPolygonLookup")
Maintained by
Markus Loecher
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2014-01-28
Latest Update: 2019-01-14
Description:
Facilitates efficient polygon search using kd trees. Coordinate level spatial data can be aggregated to higher geographical identities like census blocks, ZIP codes or police district boundaries. This process requires mapping each point in the given data set to a particular identity of the desired geographical hierarchy. Unless efficient data structures are used, this can be a daunting task. The operation point.in.polygon() from the package sp is computationally expensive. Here, we exploit kd-trees as efficient nearest neighbor search algorithm to dramatically reduce the effective number of polygons being searched.
How to cite:
Markus Loecher (2014). RapidPolygonLookup: POLYGON LOOKUP USING KD TREES. R package version 0.1.1, https://cran.r-project.org/web/packages/RapidPolygonLookup. Accessed 06 Nov. 2024.
Previous versions and publish date:
0.1 (2014-01-28 16:28)
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Complete documentation for RapidPolygonLookup
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