sitreeE (version 0.0-10)

PBAL.dbh.greater: Basal area of larger trees which are at least X cm larger than the tree of interest

Description

Calculates the basal area (in cm2 if dbh is in mm) of trees that are at least X (in the same units as dbh) larger than the tree of interest for a list of trees.

Usage

PBAL.dbh.greater(dbh.mm, dbh.mm.diff)

Value

It returns a list with the basal area of larger trees.

Arguments

dbh.mm

a vector of dbh in mm

dbh.mm.diff

minimum dbh difference between the tree and the tree of interest to be considered

Author

Cara Antón-Fernández (email: [e-mail])

Details

It estimates the basal area (in cm2) of trees that are at least dbh.mm.diff mm larger than the tree of interest.

See Also

PBAL

Examples

library(sitree)
PBAL.dbh.greater(c(100,89,51,74,4), 3)

aggregate(dbh ~ plot.id, data = tr, FUN = PBAL.dbh.greater, dbh.mm.diff = 2)