parzer: Parse Messy Geographic Coordinates

Parse geographic coordinates from various formats to decimal degree numeric values. Parse coordinates into their parts (degree, minutes, seconds); calculate hemisphere from coordinates; pull out individually degrees, minutes, or seconds; add and subtract degrees, minutes, and seconds. C++ code herein originally inspired from code written by Jeffrey D. Bogan, but then completely re-written.

Version: 0.4.0
Imports: Rcpp (≥ 1.0.2), withr
LinkingTo: Rcpp
Suggests: testthat, randgeo, knitr, rmarkdown, callr, pkgbuild, pkgload
Published: 2021-02-16
Author: Scott Chamberlain ORCID iD [aut, cre], Alban Sagouis [ctb], Jeffrey Bogan [ctb] (C++ code originally from Jeffrey Bogan, but completely re-written), Julien Brun [rev] (Julien Brun reviewed the package, see, Maria Munafó [rev] (Maria Munafó reviewed the package, see, rOpenSci [fnd] (
Maintainer: Scott Chamberlain <sckott at>
License: MIT + file LICENSE
URL: (devel) (docs)
NeedsCompilation: yes
SystemRequirements: C++11
Language: en-US
Materials: README NEWS
CRAN checks: parzer results


Reference manual: parzer.pdf
Vignettes: Introduction to the parzer package
Package source: parzer_0.4.0.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release: parzer_0.4.0.tgz, r-oldrel: parzer_0.4.0.tgz
Old sources: parzer archive


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