height.mod: Estimate tree height from a height-diameter model

In ForestPlots/BiomasaFP: BiomasaFP: Functions for analysing data downloaded from ForestPlots.net

Estimate tree height from a height-diameter model

Description

Function to estimate height from height-diameter model parameters

Usage

height.mod(
  dbh,
  data,
  model = "Model",
  a = "a_par",
  b = "b_par",
  c = "c_par",
  d = "d_par",
  height = "Height",
  ChaveE = "ChaveE",
  user.func = NULL
)

Arguments

dbh	Numeric vector of diameters (DBH, mm).
data	Dataframe containing columns reference in arguments below (e.g. model parameters).
model	Character vector giving the type of height-diameter to use. Should be one of Weibull, Loglog, Env, Obs, MicMent, Hoerl, Gompertz, Polynomial or User. Obs uses measured heights. User uses user defined function supplied to user.func.
a	Numeric. Height-diameter model parameter.
b	Numeric. Height-diameter model parameter.
c	Numeric. Height-diameter model parameter.
d	Numeric. Height-diameter model parameter.
height	Numeric. Tree height (used when model is "Obs").
ChaveE	Environmental stress parameter for height from Chave et al. 2014 Global Change Biology.
user.func	User defined height-diameter function. Must use on or more of the parameters defined above.

Value

Numeric vector with estimated heights.

Author(s)

Martin Sullivan

ForestPlots/BiomasaFP documentation built on April 28, 2023, 8:26 a.m.