define_trips_jepol — rb_trip

Use the columns "SI_HARB" to determine when a vessel is on a trip. A trip is defined from when it leaves the harbour till it returns

rb_trip_jepol(
  vessel_id,
  time,
  in_harbour,
  min_dur = 0.5,
  max_dur = 72,
  split_trips = TRUE
)

Arguments

vessel_id: a vector containing vessel id
time: a vector containing timestamp
in_harbour: a binary vector indicating if vessel in harbour (1) or not (0)
min_dur: the minimum trip length (hours)
max_dur: the maximum trip length (hours)
split_trips: If the trip is longer than the maximum hours, it will try to split the trip into two or more trips, if there is long enough intervals between pings

a gps datset