Description
Parse Messy Geographic Coordinates.
Description
Parse messy geographic coordinates from various character 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.
README.md
parzer
parzer
parses messy geographic coordinates
Docs: https://docs.ropensci.org/parzer/
You may get data from a published study or a colleague, and the coordinates may be in some messy character format that you’d like to clean up to have all decimal degree numeric data.
parzer
API:
parse_hemisphere
parse_lat
parse_llstr
parse_lon
parse_lon_lat
parse_parts_lat
parse_parts_lon
pz_d
pz_degree
pz_m
pz_minute
pz_s
pz_second
Usage
For example, parse latitude and longitude from messy character vectors.
parse_lat(c("45N54.2356", "-45.98739874", "40.123°"))
#> [1] 45.90393 -45.98740 40.12300
parse_lon(c("45W54.2356", "-45.98739874", "40.123°"))
#> [1] -45.90393 -45.98740 40.12300
See more in the Introduction to the parzer
package vignette.
Installation
Stable version
install.packages("parzer")
Development version
remotes::install_github("ropensci/parzer")
library("parzer")
Similar art
sp::char2dms
: is most similar toparzer::parse_lat
andparzer::parse_lon
. However, withsp::char2dms
you have to specify the termination character for each of degree, minutes and seconds.parzer
does this for the user.biogeo::dms2dd
: very unlike functions in this package. You must pass separate degrees, minutes, seconds and direction todms2dd
. No exact analog is found inparzer
, whose main focus is parsing messy geographic coordinates in strings to a more machine readable version
Meta
- Please report any issues or bugs.
- License: MIT
- Get citation information for
parzer
in R doingcitation(package = 'parzer')
- Please note that this package is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.