Apply a function to each cell in a GDALRasterDataset, using blockwise I/O

Apply a function to each cell in a GDALRasterDataset, using blockwise I/O

block_apply(rast, rast_out, fun, band = 1)

Arguments

rast	A GDALRasterDataset from which values should be read
rast_out	A GDALRasterDataset to which values should be written
fun	A function to apply to each cell in rast
band	The band of rast to read