Partitions total catch of each species for each trip on provided grouping variables. NAs in weights are ignored (treated as zero).
Usage
calculateLogbookPartitionByTrip(
logbooks,
groupCols,
tripCol = "tripid",
speciesCol = "FANGSTART_FAO",
weightCol = "RUNDVEKT"
)Arguments
- logbooks
data.tablewith logbooks- groupCols
character() vector of names identifying the grouping columns in 'logbooks'
- tripCol
character() identyfing the column in 'logbooks' that identify a trip
- speciesCol
character() identyfing the column in 'logbooks' that specify species.
- weightCol
character() identifying the column in 'logbboks' that specify the live weight of the species.
Details
Default parameters are compatible readErsFile with tripids annotated by appendTripIdLogbooks.
For other partitionings of logbooks, consider tabulateFisheries.
Examples
if (FALSE) {
#make calculate fractions in each area for each trip
lssfile <- "" #set appropriately
logbfile <- "" #set appropriately
landings <- RstoxData::readLssFile(lssfile)
logbooks <- RstoxData::readErsFile(logbfile)
tripIds <- makeTripIds(landings)
logbooksWtripIds <- appendTripIdLogbooks(logbooks, tripIds)
logbooksWtripIds$mainArea <- substring(logbooksWtripIds$LOKASJON_START,1,2)
fractions <- calculateLogbookPartitionByTrip(logbooksWtripIds, "mainArea")
}