new_fe_stand: Constructor for the *fe_stand* Class

In ForestElementsR: Data Structures and Functions for Working with Forest Data

Constructor for the fe_stand Class

Description

Should be used by expert users only who know exactly what they are doing. Other users please take the function fe_stand for creating an object of that class.

Usage

new_fe_stand(x = list(), ..., class = character())

Arguments

x	An appropriate list object
...	Additional arguments required for enabling subclasses of fe_stand
class	A Character string required for enabling subclasses of fe_stand

Value

An object of class fe_stand

Examples

# Constructing a minimal fe_stand object from scratch
# Use fe_stand() if you are not absolutely sure

trees <- data.frame(
  tree_id = as.character(c(1:100)),
  species_id = as_fe_species_tum_wwk_short(rep("5", 100)),
  layer_key = 1,
  time_yr = 2022,
  dbh_cm = rnorm(100, 50, 8),
  age_yr = NA_real_,
  height_m = NA_real_,
  crown_base_height_m = NA_real_,
  crown_radius_m = NA_real_,
  removal = FALSE,
  ingrowth = FALSE,
  n_rep_ha = 1 / 0.75
)

fe_stand_candidate <- list(
  stand_id = "my_interesting_stand",
  area_ha = 0.75,
  small_trees = data.frame(),
  trees = trees
)

fe_stand_object <- new_fe_stand(fe_stand_candidate)

# Better validate it
fe_stand_object |> validate_fe_stand()

ForestElementsR documentation built on April 3, 2025, 7:47 p.m.