densityplot-methods: Density plots for Raster objects.

In rasterVis: Visualization Methods for Raster Data

Density plots for Raster objects.

Description

Draw kernel density plots (with lattice) of Raster objects.

Usage

## S4 method for signature 'Raster,missing'
densityplot(x, data=NULL, layers, FUN,
            maxpixels = 1e+05,
            xlab='', ylab='', main='',
            par.settings=rasterTheme(),
            draw.labels = TRUE,
            auto.key = list(space = "right"),
            att = 1,
            ...)

## S4 method for signature 'formula,Raster'
densityplot(x, data, dirXY,
            maxpixels = 1e+05,
            xscale.components=xscale.raster,
            yscale.components=yscale.raster,
            auto.key = list(space = 'right'), 
            par.settings=rasterTheme(),...)


## S4 method for signature 'SpatRaster,missing'
densityplot(x, data=NULL, layers, FUN,
            maxpixels = 1e+05,
            xlab='', ylab='', main='',
            par.settings=rasterTheme(),
            draw.labels = TRUE,
            auto.key = list(space = "right"),
            att = 1,
            ...)

## S4 method for signature 'formula,SpatRaster'
densityplot(x, data, dirXY,
            maxpixels = 1e+05,
            xscale.components=xscale.raster,
            yscale.components=yscale.raster,
            auto.key = list(space = 'right'), 
            par.settings=rasterTheme(),...)

Arguments

x	A Raster* object, a SpatRaster object, or a formula.
data	NULL, a Raster object, or a SpatRaster object.
layers	A numeric or character which should indicate the layers to be displayed.
dirXY	A direction as a function of the coordinates (see xyLayer).
FUN	A function to applied to the z slot of a RasterStackBrick object or to the time index of a SpatRaster object. The result of this function is used as the grouping variable of the plot.
maxpixels	A numeric, for sampleRandom or spatSample.
draw.labels	Logical. If TRUE (default), labels are displayed over the maximum value of each layer. If FALSE, a key is displayed according to the auto.key argument.
xlab, ylab, main, xscale.components, yscale.components, par.settings, auto.key	Arguments for densityplot.
att	Integer or character to choose which variable (column) in the RAT table should be used.
...	Additional arguments for densityplot

Author(s)

Oscar Perpiñán Lamigueiro

See Also

lattice:densityplot(),xscale.raster, yscale.raster, rasterTheme

Examples

library(raster)
library(terra)

f <- system.file("external/test.grd", package="raster")
r <- raster(f)
densityplot(r)
s <- stack(r, r+500, r-500)
## With labels
densityplot(s)
## With a key
densityplot(s, draw.labels = FALSE)

## Not run: 
library(zoo)

dataURL <- "https://raw.github.com/oscarperpinan/bookvis/master/data/"

##Solar irradiation data from CMSAF http://dx.doi.org/10.5676/EUM_SAF_CM/RAD_MVIRI/V001
old <- setwd(tempdir())
download.file(paste0(dataURL, "SISmm2008_CMSAF.zip"),
   "SISmm2008_CMSAF.zip", method='wget')
unzip("SISmm2008_CMSAF.zip")

listFich <- dir(pattern='\\.nc')
stackSIS <- stack(listFich)
stackSIS <- stackSIS*24 ##from irradiance (W/m2) to irradiation Wh/m2
setwd(old)

idx <- seq(as.Date('2008-01-15'), as.Date('2008-12-15'), 'month')

SISmm <- setZ(stackSIS, idx)
names(SISmm) <- month.abb

densityplot(SISmm)
##FUN applies to z if not NULL
densityplot(SISmm, FUN=as.yearqtr)

## End(Not run)
## Not run: 
##http://neo.sci.gsfc.nasa.gov/Search.html?group=64
pop <- raster('875430rgb-167772161.0.FLOAT.TIFF')
pop[pop==99999] <- NA
levelplot(pop, zscaleLog=10, par.settings=BTCTheme,
          panel=panel.levelplot.raster, interpolate=TRUE)

##http://neo.sci.gsfc.nasa.gov/Search.html?group=20
landClass <- raster('241243rgb-167772161.0.TIFF')
landClass[landClass==254] <- NA


s <- stack(pop, landClass)
names(s) <- c('pop', 'landClass')

densityplot(~asinh(pop)|landClass, data=s,
            scales=list(relation='free'),
            strip=strip.custom(strip.levels=TRUE))

## End(Not run)

rasterVis documentation built on Nov. 2, 2023, 5:25 p.m.