dmgfd_fit_model_double_richards: Fit double-Richards model

In dendRoAnalyst: A Tool for Processing and Analyzing Dendrometer Data

Fit double-Richards model

Description

Fit double-Richards model

Usage

dmgfd_fit_model_double_richards(
  x,
  y,
  x_pred,
  fixed_a_value = NA_real_,
  fix_a_to_observed_max = FALSE,
  start_value_double_richards_parameters = list(a = NA_real_, k = NA_real_, t0 =
    NA_real_, v = 1, a2 = NA_real_, k2 = NA_real_, t02 = NA_real_, v2 = 1)
)

Arguments

x	Observed season-day values.
y	Observed cumulative growth values.
x_pred	Prediction season-day values.
fixed_a_value	Optional fixed total asymptote on original scale.
fix_a_to_observed_max	Logical fixed-asymptote flag.
start_value_double_richards_parameters	Starting values.

Value

List with pred and params.

dendRoAnalyst documentation built on May 20, 2026, 5:07 p.m.