get_area_ha: Get the Area in ha of a Compatible Object
Description
The function get_area_ha will return the correct area for all
appropriate objects provided by ForestElementsR. While the
fe_stand class contains this information directly, this is not
the case for the fe_stand_spatial class. However,
get_area_ha will work for both (and other objects to be implemented)
in the same way. In case the object x does not contain sufficient
information, the function returns NULL.
Usage
get_area_ha(x)
Value
The object's area in ha. In case the object x does not contain
sufficient information, the function returns NULL.
Arguments
x
Object provided by ForestElementsR for which an area can be
meaningfully given, typically fe_stand or
fe_stand_spatial
# Example for an fe_stand objectselection_forest_1_fe_stand |> get_area_ha()
# Example for an fe_stand_spatial objectmm_forest_1_fe_stand_spatial |> get_area_ha()