Collapse data frame from haul to trip

Usage

haul_to_trip(
  dat,
  project,
  fun.numeric = mean,
  fun.time = mean,
  tripID,
  haul_count = TRUE,
  log_fun = TRUE
)

Arguments

dat: Primary data containing information on hauls or trips. Table in the FishSET database contains the string 'MainDataTable'.
project: String, name of project.
fun.numeric: How to collapse numeric or temporal data. For example, min, mean, max, sum. Defaults to mean.
fun.time: How to collapse temporal data. For example, min, mean, max. Cannot be sum for temporal variables.
tripID: Column(s) that identify the individual trip.
haul_count: Logical, whether to return a column of the number of hauls per trip.
log_fun: Logical, whether to log function call (for internal use).

Value

Returns the primary dataset where each row is a trip.

Details

Collapses primary dataset from haul to trip level. Unique trips are defined based on selected column(s), for example, landing permit number and disembarked port. This id column is used to collapse the data to trip level. fun.numeric and fun.time define how multiple observations for a trip are collapsed. For variables that are not numeric or dates, the first observation is used.

Examples

if (FALSE) {
pollockMainDataTable <- haul_to_trip("pollockMainDataTable","pollock",
    min, mean, "PERMIT", "DISEMBARKED_PORT"
    )
}