raster (version 2.0-05)

freq: Frequency table

Description

Frequency table of the values of a RasterLayer.

Usage

## S3 method for class 'RasterLayer':
freq(x, digits=0, useNA='ifany', progress='', ...)

Arguments

x

RasterLayer

digits

Non-negative integer for rounding the cell values. Argument is passed to round

useNA

Character. What to do with NA values? Options are "no", "ifany", "always". See to table

progress

Character to specify a progres bar. Choose from 'text', 'window', or '' (the default, no progress bar)

...

Additional arguments (none implemented)

Value

• matrix

See Also

count, crosstab and zonal

Examples

r <- raster(nrow=18, ncol=36)
r[] <- runif(ncell(r))
r <- r * r * r * 10
freq(r)