remove.outliers.from.raster.IQR: Remove outliers from raster

In niknap/LidarProcessoR: Collection of R functions for Lidar data processing

Description

Function that sets value of a raster pixel to NA if it exceeds or subceeds the interquantile range (IQR) of its neighbors by a certain factor.

Usage

remove.outliers.from.raster.IQR(ras, rad = 5, low.perc = 0.25,
  high.perc = 0.75, fac = 1.5, high = T, low = T)

Arguments

ras	Input raster
rad	Radius of the considered (circular) neighborhood
low.perc	Lower end of the desired interquantile range (fraction between 0 and 1)
high.perc	Upper end of the desired interquantile range (fraction between 0 and 1)
fac	Factor by which a pixel value needs to exceed or subceed the IQR of its neighbors to be considered an outlier
high	bool if false high outliers will not be removed
low	bool if false low outliers will not be removed

Value

Raster object with gaps (NA) at the positions of former outliers

Author(s)

Nikolai Knapp, [e-mail]

Examples

in progress

niknap/LidarProcessoR documentation built on May 29, 2019, 7:18 a.m.