DLMtool (version 3.2.3)

genLenComp: Generate length composition of catch

Description

Generate size composition of catch given sample of catch-at-age, expected length-at-age, and standard deviation of length-at-age. Model assumes length-at-age is normally distributed, and that selectivity is size-dependant

Usage

genLenComp(CAL_bins, CAL_binsmid, SL, CAL_ESS, CAL_nsamp, CN, LaA, LaASD,
  truncSD)

Arguments

CAL_bins

vector of catch-at-length size bins

CAL_binsmid

vector (nbins = length(CAL_bins) - 1) of mid-points for catch-at-length size bins

SL

matrix (nbins, nyears) of selectivity-at-length class for each year

CAL_ESS

effective sample size of catch-at-length data

CAL_nsamp

sample size of catch-at-length data

CN

matrix (nyears, maxage) of catch-at-age for each year

LaA

matrix (maxage, nyears) of expected length-at-age for each year

LaASD

matrix (maxage, nyears) of standard deviation of length-at-age for each year

truncSD

optional argument to truncate the length-at-age distribution at `truncSD` standard deviations e.g., a value of 2 truncates the length-at-age distribution at two standard deviations (set to 0 to ignore (default))