lachesis

Description

Implements the first-stage stop point detection algorithm from Hariharan and Toyama (2004) Project Lachesis: Parsing and Modeling Location Histories

Data format

This library requires a .csv file (header optional) with the columns: id (String), time (String), x (Float), y (Float).

Example usage

{shell} cat data/gps_data.csv | lachesis --distance 200 --time 300 --fmt '%Y-%m-%d %H:%M:%S' > output.csv

Help

lachesis --help

``` GPS stop point detection from Hariharan and Toyama (2004) 'Project Lachesis: Parsing and Modeling Location Histories'

Usage: lachesis --distance --time --fmt-time

Options: -d, --distance Maximum spatial roam of a stop point (i.e. 200m) -t, --time Minimum time duration of a stop point (i.e. 300 seconds) -f, --fmt-time Format of dates in the input file (i.e. "%Y-%m-%d %H:%M:%S") -h, --help Print help -V, --version Print version ```