sigmoid_length: Length based sigmoid selectivity function

In pwoodworth-jefcoats/Size-Based-Modeling: Mizer With The Effects Of Temperature Included

Length based sigmoid selectivity function

Description

A sigmoid shaped selectivity function. Based on two parameters l25 and l50 which determine the length at which 25% and 50% of the stock is selected respectively. As the size-based model is weight based, and this selectivity function is length based, it is also necessary to supply the length-weight parameters a and b.

Usage

sigmoid_length(w, l25, l50, a, b)

Arguments

w	the size of the individual.
l25	the length which gives a selectivity of 25%.
l50	the length which gives a selectivity of 50%.
a	the multiplier of the length-weight function.
b	the exponent of the length-weight function.

pwoodworth-jefcoats/Size-Based-Modeling documentation built on Sept. 15, 2023, 8:13 a.m.