README.md

In brianhigh/stopr: A stop locator for GPS track data

stopr

stopr is an R package providing stop detection functions for GPS track data.

Installation

You can install the development version from GitHub with:

# install.packages("devtools")
devtools::install_github("brianhigh/stopr")

Functions

The function find_stops() will find stops on a route and return them as rows of a tibble. The function uses the latitude, longitude, and timestamp variables from a GPS track dataset. Function options provide for control of operation, including a minimum stop duration cutoff and smoothing parameters.

Example

This is a basic example which shows you how to use find_stops():

library(readr)
library(stopr)
df <- read_csv(data_file)
stops <- find_stops(df, stop_min_duration_s = 20, k = 5)

Where...

• The stop duration cutoff, stop_min_duration_s, was set to a minimum of 20 seconds.
• The window size, k, for the rolling median (smoothing) was set to 5 seconds.

Applications

stopr output can be plotted on maps like the one below, showing stops in red, with the size of the point proportional to the duration of the stop.

brianhigh/stopr documentation built on Nov. 11, 2019, 6:29 a.m.