rneigh: Get neighbor indices of a raster

In ptarroso/gameR: A small useless package to play games in R with your data

Description

A wrapper for ineigh to get raster neighbor indices.

Usage

rneigh(i, raster, neigh=1, rm.focal=T)

Arguments

i	Source pixel ID number.
raster	The raster object to extract row and column numbers.
neigh	The number of neighbors to get.
rm.focal	Remove the focal pixel from the results?

Details

This is a wrapper for ineigh that simplifies getting the neighbors of a pixel in a raster object.

Value

A vector with integer indices.

Author(s)

Pedro Tarroso

Examples

	# the 3x3 neighbors of pixel 34, on a raster with 360 columns and 180 rows.
	require(raster)
	rst <- raster(nrow=180, ncol=360)
	rneigh(34, rst)

ptarroso/gameR documentation built on Nov. 17, 2021, 12:33 a.m.