d_age_gnfi3_core {ForestElementsR} | R Documentation |
Core Function for Estimate Stem Diameter Growth With the 3rd German National Forest Inventory Growth Model (2012)
Description
See documentation of d_age_gnfi3
for most information,
this function is the workhorse behind, and should never be called directly by
a user.
Usage
d_age_gnfi3_core(species_id, age_yr, dbh_cm_known, age_yr_known, params)
Arguments
species_id |
Vector of species ids (see |
age_yr |
Single numeric value or vector of ages (in years) for which the diameter is to be calculated |
dbh_cm_known |
Vector of known dbh (cm) values at age
|
age_yr_known |
Vector of ages (years) for which the dbh
|
params |
A data frame that defines the function parameters corresponding
to the species coding represented by |
Details
The function d_age_gnfi3
is fully vectorized, inputs are recyled
according to the tibble rules
Value
A vector with estimates of the trees' expected dbh (see
d_age_gnfi3
)