dms2dec: Degree-minute-second to decimal degree coordinates

In fuzzySim: Fuzzy Similarity in Species Distributions

Degree-minute-second to decimal degree coordinates

Description

This function converts degree-minute-second geographic coordinates to decimal degree (numeric) coordinates appropriate for mapping and analysis.

Usage

dms2dec(dms,
seps = c("\\u00ba", "\\u00b0", "\\'", "\\'", "\\\"", "\\\\?"))

Arguments

dms	character vector of geographic coordinates (latitude or longitude) in degree-minute-second-hemisphere format, e.g. 41° 34' 10.956" N (with or without spaces); or in degree-decimal minute format, e.g. 41° 34.1826' N (with or without spaces)
seps	character vector of possible separators in 'dms'. The default includes commonly used symbols for degrees, minutes and seconds, converted with stringi::stri_escape_unicode() for portability

Value

This function returns a numeric vector of the input coordinates after conversion to decimal degree format.

Author(s)

A. Marcia Barbosa (https://github.com/AMBarbosa) with contributions by Paul Melloy (https://github.com/PaulMelloy)

Examples

coords_dms <- structure(list(Longitude = c("31º40'44.12''E", "31º41'23.35''E",
"31º37'01.94''E", "30º53'07.75''E"), Latitude = c("24º54'36.44''S",
"24º05'02.09''S", "25º09'46.72''S", "24º12'09.02''S")), row.names = c(NA, 4L),
class = "data.frame")
coords_dms

lon_dec <- dms2dec(coords_dms$Longitude)
lat_dec <- dms2dec(coords_dms$Latitude)

coords_dec <- sapply(coords_dms, dms2dec)
coords_dec

fuzzySim documentation built on Sept. 25, 2024, 3 a.m.