preprocessing: Preprocessing VMS data
In gmoroncorrea/VMSIndicators: VMS indicators

Calculates required variables to calculate the efficiency indicators and make plots.

preprocessing(
  vmsdata,
  catchdata,
  vesseldata,
  cutoff_dc = 5,
  cutoff_time = 8,
  min_trip_time = 5
)

`vmsdata`	VMS dataset.
`catchdata`	Dataset with landings.
`vesseldata`	Vessel information.
`cutoff_dc`	Minimum distance to the shoreline (in nautical miles) to identify a fishing trip.
`cutoff_time`	Maximum time interval (in hours) allowed between arrival time and landing time.
`min_trip_time`	Minimum trip time allowed (in hours).