Change cell values to logical or integer values

Change values of a Raster* object to logical or integer values. With as.logical, zero becomes FALSE, all other values become TRUE. With as.integer values are truncated.

# S4 method for Raster
as.logical(x, filename='', ...)

# S4 method for Raster
as.integer(x, filename='', ...)

Arguments

x

Raster* object

filename

character. Output filename (optional)

...

additional optional arguments as for writeRaster

See also

logical, integer

Examples

r <- raster(nrow=10, ncol=10)
set.seed(0)
values(r) <- runif(ncell(r)) * 10
r
#> class      : RasterLayer 
#> dimensions : 10, 10, 100  (nrow, ncol, ncell)
#> resolution : 36, 18  (x, y)
#> extent     : -180, 180, -90, 90  (xmin, xmax, ymin, ymax)
#> crs        : +proj=longlat +datum=WGS84 +no_defs 
#> source     : memory
#> names      : layer 
#> values     : 0.1339033, 9.919061  (min, max)
#> 
r <- as.integer(r)
r
#> class      : RasterLayer 
#> dimensions : 10, 10, 100  (nrow, ncol, ncell)
#> resolution : 36, 18  (x, y)
#> extent     : -180, 180, -90, 90  (xmin, xmax, ymin, ymax)
#> crs        : +proj=longlat +datum=WGS84 +no_defs 
#> source     : memory
#> names      : layer 
#> values     : 0, 9  (min, max)
#> 
as.logical(r)
#> class      : RasterLayer 
#> dimensions : 10, 10, 100  (nrow, ncol, ncell)
#> resolution : 36, 18  (x, y)
#> extent     : -180, 180, -90, 90  (xmin, xmax, ymin, ymax)
#> crs        : +proj=longlat +datum=WGS84 +no_defs 
#> source     : memory
#> names      : layer 
#> values     : 0, 1  (min, max)
#>