lid_fcov: Calculate Forest Fraction Cover from LiDAR Data

In silviculture: Utility Functions for Forest Inventory and Silviculture

Calculate Forest Fraction Cover from LiDAR Data

Description

This function calculates the forest fraction cover (Fcov) from LiDAR data. The Fcov in LiDAR is defined as the proportion of first returns above a specified height threshold (default: 5 meters) relative to the total number of first returns.

Usage

lid_fcov(z, rn, th = 5)

Arguments

z	A numeric vector representing the heights of LiDAR returns
rn	An integer vector indicating the return number for each LiDAR point. First returns are identified by a value of 1
th	a numeric vector of length one specifying the height threshold

Value

A numeric value representing the forest fraction cover, which is the proportion of first returns with heights greater than 5 meters.

Examples

# Example data
z <- c(2, 6, 10, 4, 15)
rn <- c(1, 1, 2, 1, 1)

# Calculate forest fraction cover
lid_fcov(z, rn)

silviculture documentation built on Nov. 5, 2025, 7:13 p.m.