Published by the Foundation for Open Access Statistics Editors-in-chief: Bettina Grün, Torsten Hothorn, Rebecca Killick, Edzer Pebesma, Achim Zeileis    ISSN 1548-7660; CODEN JSSOBK
[test by reto]
Authors: Jacob van Etten
Title: R Package gdistance: Distances and Routes on Geographical Grids
Abstract: The R package gdistance provides classes and functions to calculate various distance measures and routes in heterogeneous geographic spaces represented as grids. Least-cost distances as well as more complex distances based on (constrained) random walks can be calculated. Also the corresponding routes or probabilities of passing each cell can be determined. The package implements classes to store the data about the probability or cost of transitioning from one cell to another on a grid in a memory-efficient sparse format. These classes make it possible to manipulate the values of cell-to-cell movement directly, which offers flexibility and the possibility to use asymmetric values. The novel distances implemented in the package are used in geographical genetics (applying circuit theory), but also have applications in other fields of geospatial analysis.

Page views:: 4823. Submitted: 2015-01-12. Published: 2017-02-27.
Paper: R Package gdistance: Distances and Routes on Geographical Grids     Download PDF (Downloads: 5198)
gdistance_1.2-1.tar.gz: R source package Download (Downloads: 176; 439KB)
v76i13.R: R replication code Download (Downloads: 204; 6KB)

DOI: 10.18637/jss.v076.i13

This work is licensed under the licenses
Paper: Creative Commons Attribution 3.0 Unported License
Code: GNU General Public License (at least one of version 2 or version 3) or a GPL-compatible license.