metrics_lad: LAD metrics

In ptompalski/lidRmetrics: Point cloud metrics for the lidR package.

LAD metrics

Description

Metrics based on the leaf area density. lidR::LAD() used to calculate the leaf area density.

Usage

metrics_lad(z, zmin = NA, dz = 1, k = 0.5, z0 = 2)

.metrics_lad

Arguments

z	Z coordinate of the point cloud (point heights)
zmin	numeric. Minimum z value. If set, z values (heights) below are ignored in calculations.
dz	numeric. The thickness of the layers used (height bin)
k	numeric. is the extinction coefficient
z0	numeric. The bottom limit of the profile

Format

An object of class formula of length 2.

Value

A list. lad_min, lad_max, lad_mean, lad_cv, and lad_sum.

Examples

library(lidR)
library(lidRmetrics)
LASfile <- system.file("extdata", "Megaplot.laz", package="lidR")
las <- readLAS(LASfile, select = "*", filter = "-keep_random_fraction 0.5")

m1 <- cloud_metrics(las, ~metrics_lad(z = Z))

m2 <- pixel_metrics(las, ~metrics_lad(z = Z), res = 20)

ptompalski/lidRmetrics documentation built on May 7, 2024, 2:58 p.m.