cpue: cpue, a method to generate an observation of a CPUE index of...

In flr/FLCore: Core Package of FLR, Fisheries Modelling in R

cpue, a method to generate an observation of a CPUE index of abundance

Description

The observation of stock abundance by CPUE series from commercial fleets is an important step in the generation of management advice that needs to replicated on an Operating Model during any simulation exercise. This method gemnerates an observation of biomass or numbers-at-age from an FLstock being used as OM.

Usage

cpue(object, index, ...)

## S4 method for signature 'FLStock,missing'
cpue(
  object,
  sel.pattern = harvest(object),
  effort = units(harvest(object)),
  biomass = TRUE
)

Arguments

object	The object from which to generate the observation.
effort	Units of index to use to mimic effort series in the fishery, "f" or "hr"
sel	The selectivity of the survey, defaults to be 1 for all ages.
mass	Is the index to be in weight at age?

Value

An FLQuant for the index of abundance, age-disaggregated

Author(s)

Laurie Kell & Iago Mosqueira, FLR Team.

See Also

FLComp

Examples

data(ple4)

cpue(ple4)
# Am aggregated biomass CPUE
quantSums(cpue(ple4))

## Not run: 
plot(FLQuants(om=stock(ple4), cpue=quantSums(cpue(ple4)),
  hr=quantSums(cpue(ple4, effort="hr"))))

## End(Not run)

flr/FLCore documentation built on May 4, 2024, midnight