add_track_data_old: Add track data to ping data.

In bdevoe/VesselTrackeR: Tools for connecting to vessel tracking APIs and processing vessel track data.

Description

For an input SP dataframe containing tracking data, adds the following columns: * _TimeAtNextPoint_ - POSIX column representing the time at the next point in the track. * _DistToNextPoint_ - The distance in meters to next point in the track. * _TimeAtPoint_ - the time between the current point and the next point in the track. * _TrackID_ - An integer value identifying all points within the same track. * _PointInTrack_ - An integer value incrementing per point in each track * _CalcSpeed_ - The calculated speed at the point in meters/second, based on the distance to the next point divided by the time to the next point.

Usage

add_track_data_old(data, id = "deviceId", timestamp = "updateTime",
  daysplit = F, timesplit = NULL, distsplit = NULL)

Arguments

data	**SpatialPointsDataFrame** - input data.
id	**String** - column name that contains the tracking device ID, used to group tracks.
timestamp	**String** - POSIXct column name that contains the timestamp of tracking data for each point.
daysplit	**Boolean** - If True, tracks be split at the end of each calendar day.
timesplit	**Optional** **Integer** - Split tracks if more than this many minutes between pings.
distsplit	**Optional** **Integer** - Split tracks if more than this many meters between pings.

Value

SpatialPointsDataframe of tracking data.

Author(s)

Bill DeVoe, [e-mail]

bdevoe/VesselTrackeR documentation built on June 1, 2019, 4:58 a.m.