track_distance: Track distance

In traipse: Shared Tools for Tracking Data

Track distance

Description

Calculate geodesic distance on longitude, latitude input vectors. The unit of distance is metres.

Usage

track_distance(x, y)

Arguments

x	longitude
y	latitude

Details

By convention the first value is set to NA missing value, because the distance applies to each sequential pair of locations.

To use this on multiple track ids, use a grouped data frame with tidyverse code like data %>% group_by(id) %>% mutate(distance = track_distance(lon, lat))

Value

numeric vector of distances between sequential pairs of x, y in metres, see Details

Examples

track_distance(trips0$x, trips0$y)[1:10]

traipse documentation built on Oct. 10, 2022, 9:06 a.m.