xyLayer: xyLayer

In rasterVis: Visualization methods for the raster package

Description

Create a RasterLayer from a function of the coordinates.

Usage

xyLayer(object, dirXY = y)

Arguments

object	A Raster object.
dirXY	A expression indicating the function of x and y (coordinates of the Raster object) to be evaluated.

Value

A RasterLayer object.

Author(s)

Oscar Perpiñán Lamigueiro.

See Also

init, substitute, eval

Examples

f <- system.file("external/test.grd", package="raster")
r <- raster(f)
dirX <- xyLayer(r, x)
dirXY <-xyLayer(r, sqrt(x^2 + y^2))
levelplot(dirXY, margin=FALSE)

Example output

Loading required package: raster
Loading required package: sp
Loading required package: lattice
Loading required package: latticeExtra
Loading required package: RColorBrewer

rasterVis documentation built on May 2, 2019, 6:49 p.m.