rasterVis: densityplot-methods – R documentation

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rasterVis

densityplot-methods

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

Examples

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: 

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

Visualization Methods for Raster Data

v0.50.2

GPL-3

Authors

Oscar Perpinan Lamigueiro [cre, aut] (<https://orcid.org/0000-0002-4134-7196>), Robert Hijmans [aut]

Initial release

densityplot-methods

Description

Usage

Arguments

Author(s)

See Also

Examples

rasterVis

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