von Bertalanffy growth curve — vonB,FLQuant,FLPar-method • FLife

Von Bertalanffy growth equation

# S4 method for FLQuant,FLPar
vonB(age, params, ...)

Arguments

age: FLQuant, FLPar or numeric object with values corresponding to ages
params: FLPar object with parameters linf, k and t0
...: other arguments

Value

Returns an object of same class as age e.g. FLQuant

See also

gompertz, gascuel, richards

Examples

if (FALSE) {
params=FLPar(linf=100,t0=0,k=.4)
age=FLQuant(1:10,dimnames=list(age=1:10))
len=vonB(age,params)

#inverse growth curve
vonB(params=params,length=len)
}