Number of columns to extract. (defaults to all columns)
NOTES
Remember that it is necessary to run:
r.support
to create the histogram or change the color table.
i.group
to associate the individual raster files as an image group.
Only ERDAS version 7.4 or later files in 4-bit, 8-bit, or 16-bit formats
are supported.
GRASS raster files will be named prefix.band
SEE ALSO
r.support
and i.group
AUTHORS
M.L. Holko, USDA, SCS, NHQ-CGIS
Paul H. Fukuhara, USDA, SCS, NCG-GSS