gen_example {ecan}

Generate vegetation example

Description

Stand, species, and cover are basic. Layer, height, st_group, are sp_group optional.

Usage

gen_example(
  n = 300,
  use_layer = TRUE,
  height_max = 20,
  ly_list = "",
  st_list = LETTERS[1:9],
  sp_list = letters[1:9],
  st_group = NULL,
  sp_group = NULL,
  cover_list = 2^(0:6)
)

Arguments

n

A numeric to generate no of occurrences.

use_layer

A logical. If FALSE, height_max and ly_list will be omitted.

height_max

A numeric. The highest layer of samples.

ly_list, st_list, sp_list, st_group, sp_group

A string vector. st_group and sp_group are optional (default is NULL). Length of st_list and sp_list should be the same as st_group and sp_group, respectively.

cover_list

A numeric vector.

Value

A dataframe with columns: stand, layer, species, cover, st_group and sp_group.

Examples

n <- 300
height_max <- 20
ly_list    <- c("B1", "B2", "S1", "S2", "K")
st_list    <- LETTERS[1:9]
sp_list    <- letters[1:9]
st_group   <- rep(LETTERS[24:26], 3)
sp_group   <- rep(letters[24:26], 3)
cover_list <- 2^(0:6)
gen_example(n = n, use_layer = TRUE,
            height_max = height_max, ly_list = ly_list, 
            st_list  = st_list,  sp_list  = sp_list,
            st_group = st_group, sp_group = sp_group,
            cover_list = cover_list)