Calculate length composition input sampled size (iss)

Source: R/comp_stats.R

Function to calculate length composition iss (harmonic mean of realized sample sizes) and add nominal sample size (the number of lengths actually measured) and the number of sampled hauls to output. Will compute for regional or spatially-explicit cases (depending on whether survey_region is defined, see arguments below)

iss_length(rss_length, lfreq_data, survey_region = NULL)

Arguments

rss_length

iterated length composition realized sample size

lfreq_data

length frequency input dataframe

survey_region

overall region, i.e., goa, ai, ebs, nbs... If defined, will compute statistics for spatially-explicit results. (default = NULL)