Percentiles

Percentiles of point heights

Usage

metrics_percentiles(z, zmin = NA)

.metrics_percentiles

Format

An object of class formula of length 2.

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.

Value

A list. Set of height percentiles including: zq1, zq5, zq10, zq15, zq20, zq25, zq30, zq35, zq40, zq45, zq50, zq55, zq60, zq65, zq70, zq75, zq80, zq85, zq90, zq95, and zq99.

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_percentiles(z = Z))

m2 <- pixel_metrics(las, ~metrics_percentiles(z = Z, zmin = 2), res = 20)