[R-sig-Geo] Write GeoTiff with color table

[Ned Horning]

Hi - Is it possible to output an Indexed (single band byte image) 
GeoTiff using a predefined look-up-table in R? For now I output a byte 
GeoTiff file from R and then import it into GRASS, create a color table, 
and then export that as a colored GeoTiff. That works fine but it would 
be nice to be able to create the colored GeoTiff directly in R.

All the best,

Ned