calcPropNum.Rd
Calculate number of propellers (nProp
) by ship type
trends.
calcPropNum( shipType, paxTugShipTypes = c("cruise.ed", "passenger", "ferry.pax", "ferry.ro.pax", "cruise", "yacht", "tug", "service.tug") )
shipType | Ship type (vector of strings, see |
---|---|
paxTugShipTypes | Ship types specified in input |
nProp
(vector of numericals)
Based on a sample of 2,700 ships from Clarksons.
This method this requires ship types to be grouped. Use the
paxTugShipTypes
grouping parameter to provide these ship type
groupings. Any ship types not included in these groupings will be considered
as miscellaneous vessels.
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