As you can see, these are simply analogs of the function grey.colors, and
would be useful for image processing code done in R. This would be a
simple change, with little impact on existing code.
Documentation for the three new functions would be added to gray.colors.Rd.
I could make the necessary changes, and would volunteer to make the
changes, but don't have SVN access.
2) Can someone explain the origin of the naming system for these
functions? I would have thought function names such as palette.terrain,
palette.gray, palette.heat, etc. would be more obvious to users.
A change such as this would obviously be more intrusive, but could be
easily accomplished over a transition period. The old function names
could be depreciated, while still pointing to the correct code.