novak_weibull_find_start {iadf}

novak_weibull_find_start

Description

Find good start values manually in case novak_weibull returns an error caused by insufficient default starting values.

Usage

novak_weibull_find_start(
  novak_freq_object,
  min.n = 15,
  max_a = 10,
  max_b = 3,
  max_c = 30
)

Arguments

novak_freq_object

A novak_freq_object as obtained from novak_freq

min.n

minimum number of samples within each cambial age to be included in model estimation

max_a

maximum value of manipulate slider for parameter a

max_b

maximum value of manipulate slider for parameter b

max_c

maximum value of manipulate slider for parameter c

Value

a list which can be used as input argument 'start' in novak_weibull