dbllogistic: Calculate a double logistic function parameterized by z50 and...

In wStockhausen/rsimTCSAM: Simulation model for testing TCSAM2013 and TCSAM02 models.

Description

Function to calculate a double logistic function parameterized by z50 and slope for ascending/descending limbs

Usage

dbllogistic(z, ascZ50, ascSlope, dscZ50, dscSlope, fsz = 0)

Arguments

z	- vector of sizes at which to compute selectivities
ascZ50	- ascending logistic size at which selectivity = 0.5 (logit-scale mean)
ascSlope	- ascending logistic slope at z50
dscZ50	- descending logistic size at which selectivity = 0.5 (logit-scale mean)
dscSlope	- descending logistic slope at z50
fsz	- if fsz>0, fsz=fully-selected size. if fsz<0, function is normalized to max. if fsz=0, no re-scaling is done

Value

vector with selectivity values at the elements of z

wStockhausen/rsimTCSAM documentation built on May 3, 2019, 7:35 p.m.