calcPrMoltToMaturity: Calculate the probability at crab size z for the molt to...

In wStockhausen/tcsamFunctions: Functions related to the BSAI Tanner crab stock assessment (2015+)

Calculate the probability at crab size z for the molt to maturity, pr(mature|z)

Description

Function to calculate the probability at crab size z for the molt to maturity, pr(mature|z). Note that it is up to the user to define whether "size" refers to pre-molt or post-molt size. If pre-molt, then pr(mature|z) is the probability of molting to maturity (terminal molt) on the NEXT molt whereas if size is post-molt then pr(mature|z) is the probability that a crab that just molted to size z also matured.

Usage

calcPrMoltToMaturity(
  coeffs = list(type = "logistic", z50 = 130, slope = 0.1),
  sizes = seq(from = 25, to = 185, by = 1)
)

Arguments

coeffs	: a named list identifying function type and coefficient values
sizes	: vector of sizes at which to evaluate the function

Details

coeffs is a named list with the 1st element 'type' identifying the function type (e.g. 'logistic') and remaining elements as function coefficients (e.g., slope, z50).

wStockhausen/tcsamFunctions documentation built on Jan. 28, 2024, 9:01 a.m.