Create a barplot of the values of a RasterLayer. For large datasets a regular sample with a size of approximately maxpixels is used.
# S4 method for RasterLayer
barplot(height, maxpixels=1000000, digits=0, breaks=NULL, col=rainbow, ...)A numeric vector (or matrix, when beside = TRUE) of the coordinates of the bar midpoints, useful for adding to the graph. See barplot
RasterLayer
integer. To regularly subsample very large objects
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 used to group the data as in cut
a color generating function such as rainbow, or a vector of colors
additional arguments for plotting as in barplot
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)
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