selFcn.DoubleNormal4a: Calculate a double normal selectivity function with "4a"...

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

Calculate a double normal selectivity function with "4a" parameterization

Description

Function to calculate (and optionally plot the components of) a double normal selectivity function with "4a" parameterization.

Usage

selFcn.DoubleNormal4a(zBs, params, fsZ, showPlot = TRUE)

Arguments

zBs	: vector of sizes at which to compute values
params	: vector of parameters
fsZ	: max possible size on the "shelf"
showPlot	: flag (T/F) to plot components of function

Details

Should replicate TCSAM02 dblnormal4a selectivity function.

• params[1]: size at which ascending limb hits 1

• params[2]: width of ascending limb

• params[3]: scaled size at which descending limb departs from 1

• params[4]: width of descending limb

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