estimate_bootstrap: Calculate bootstrap estimates of species biomass

In kstierhoff/atm: Functions Used for the Analysis of Acoustic-Trawl Method (ATM) Survey Data

Calculate bootstrap estimates of species biomass

Description

Calculate bootstrap estimates of species biomass

Usage

estimate_bootstrap(
  nasc.df,
  clf.df,
  stratum.num,
  stratum.area,
  species = NULL,
  do.lf = FALSE,
  boot.number = 0
)

Arguments

nasc.df	A data frame containing total backscatter from all CPS (cps.nasc), acoustic proportions (prop.spp), and weight-specific backscattering cross sections (sigmawg.spp) in a given stratum
clf.df	A data frame containing cluster length frequencies for a given species (cps.nasc), acoustic proportions (prop.spp), and weight-specific backscattering cross sections (sigmawg.spp) in a given stratum
stratum.num	A vector containing stratum number.
stratum.area	A vector containing stratum area (in square meters).
species	A vector containing the species' scientific name (Clupea pallasii, Engraulis mordax, Sardinops sagax, Scomber japonicus, or Trachurus symmetricus).
do.lf	Return a length frequency (TRUE/FALSE)
boot.number	A vector defining the number of bootstrap samples.

Value

A data frame containing estimates of biomass and abundance or a list of biomass, abundance, and length frequency.

Examples

estimate_bootstrap(nasc.df, clf.df, stratum.num, stratum.area,
"Engraulis mordax", do.lf = TRUE, boot.num = 1000)

kstierhoff/atm documentation built on Jan. 30, 2025, 11:21 p.m.