rasterVis (version 0.47)

densityplot-methods: Density plots for Raster objects.

Description

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

Usage

# S4 method for RasterLayer,missing
densityplot(x, data=NULL, maxpixels = 1e+05,
            xlab='', ylab='', main='', col='black', ...)

# S4 method for RasterStackBrick,missing
densityplot(x, data=NULL, layers, FUN,
            maxpixels = 1e+05,
            xlab='', ylab='', main='',
            par.settings=rasterTheme(),
            ...)
# S4 method for 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(),...)

Arguments

x

A Raster* object or a formula.

data

NULL or a Raster 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. The result of this function is used as the grouping variable of the plot.

maxpixels

A numeric, for sampleRandom.

xlab, ylab, main, col, xscale.components, yscale.components, par.settings, auto.key

Arguments for densityplot.

…

Additional arguments for densityplot

See Also

densityplot,xscale.raster, yscale.raster, rasterTheme

Examples

# NOT RUN {
f <- system.file("external/test.grd", package="raster")
r <- raster(f)
densityplot(r)
s <- stack(r, r+500, r-500)
densityplot(s)

# }
# NOT RUN {
old <- getwd()
##change to your folder...
setwd('CMSAF')
listFich <- dir(pattern='2008')
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)
# }
# 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))
# }