raster (version 3.6-30)

barplot: Bar plot of a RasterLayer

Description

Create a barplot of the values of a RasterLayer. For large datasets a regular sample with a size of approximately maxpixels is used.

Usage

# S4 method for RasterLayer
barplot(height, maxpixels=1000000, digits=0, breaks=NULL, col=rainbow, ...)

Value

A numeric vector (or matrix, when beside = TRUE) of the coordinates of the bar midpoints, useful for adding to the graph. See barplot

Arguments

height

RasterLayer

maxpixels

integer. To regularly subsample very large objects

digits

integer used to determine how to round the values before tabulating. Set to NULL or to a large number if you do not want any rounding

breaks

breaks used to group the data as in cut

col

a color generating function such as rainbow, or a vector of colors

...

additional arguments for plotting as in barplot

See Also

hist, boxplot

Examples

f <- system.file("external/test.grd", package="raster")
r <- raster(f)
barplot(r, digits=-2, las=2, ylab='Frequency')

op <- par(no.readonly = TRUE)
par(mai = c(1, 2, .5, .5))
barplot(r, breaks=10, col=c('red', 'blue'), horiz=TRUE, digits=NULL, las=1)
par(op)