getValues returns all values or the values for a number of rows of a Raster* object. Values returned for a RasterLayer are a vector. The values returned for a RasterStack or RasterBrick are always a matrix, with the rows representing cells, and the columns representing layers
values is a shorthand version of getValues (for all rows).
getValues(x, row, nrows, ...)values(x, ...)
vector or matrix of raster values
Raster* object
Numeric. Row number, should be between 1 and nrow(x), or missing in which case all values are returned
Numeric. Number of rows. Should be an integer > 0, or missing
Additional arguments. When x is a RasterLayer: format to specify the output format. Either "matrix" or, the default "", in which case a vector is returned
getValuesBlock, getValuesFocal, setValues
r <- raster(system.file("external/test.grd", package="raster"))
r
v <- getValues(r)
length(v)
head(v)
getValues(r, row=10)
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