Calcualtes and aggregates parameters on dendrometry of trees — calculate

This function calculates additional variables and makes aggregations of individual tree measures on the levels of

plot and year
plot, tree species and year
diameter class, plot and year
diameter class, plot, tree species and year

and it makes aggregations of volume data on logs on the levels of

decay stage, plot and year
decay stage, plot, tree species and year

calculate_dendrometry(data_dendro, data_deadwood, data_shoots, height_model)

Arguments

data_dendro: dataframe on tree measures with variables plot_id, plottype, tree_measure_id, date_dendro, dbh_mm, height_m, species, alive_dead, decaystage, period, OldID, year, subcircle, plotarea_ha,... (output of function load_data_dendrometry())
data_deadwood: dataframe on logs with variables plot_id, plottype, date_dendro, species, decaystage, calc_volume_m3, period and year (output of function load_data_deadwood())
data_shoots: dataframe on shoots as given from the function load_data_shoots()
height_model: dataframe with `model` containing 'exp' or 'ln', coeficients `P1` and `P2` to calculate height model for each combination of `species`, `forest_reserve`, `period` and `plottype`. Height models in .xlsx generated by Fieldmap can be grouped in a dataframe using function `load_height_models()`

Value

List of dataframes that are mentioned in the above description

Examples

if (FALSE) {
#change path before running
library(forrescalc)
data_dendro <-
  load_data_dendrometry("C:/MDB_BOSRES_selectieEls/FieldMapData_MDB_BOSRES_selectieEls.accdb")
data_deadwood <-
  load_data_deadwood("C:/MDB_BOSRES_selectieEls/FieldMapData_MDB_BOSRES_selectieEls.accdb")
data_shoots <-
  load_data_shoots("C:/MDB_BOSRES_selectieEls/FieldMapData_MDB_BOSRES_selectieEls.accdb")
height_model <- load_height_models("C:/bosreservaten/Hoogtemodellen/")
calculate_dendrometry(data_dendro, data_deadwood, data_shoots, heightmodel)
}