Find good start values manually in case
novak_weibull
returns an error caused by insufficient default starting values.
novak_weibull_find_start(
novak_freq_object,
min.n = 15,
max_a = 10,
max_b = 3,
max_c = 30
)
A novak_freq_object as obtained from
novak_freq
minimum number of samples within each cambial age to be included in model estimation
maximum value of manipulate slider for parameter a
maximum value of manipulate slider for parameter b
maximum value of manipulate slider for parameter c
a list which can be used as input argument 'start' in
novak_weibull