[R-pkgs] addScales package available on CRAN

[Bert Gunter]

addScales is a small package that modifies trellis objects created
using lattice graphics by adding horizontal and/or vertical reference
lines that provide visual scaling information. This is mostly useful
for multi-panel plots that use the relation = 'free' option in their
'scales' argument list. Examples show when and how this might aid data
visualization.

Please feel free to contact me with suggestions for improvement.

Bert Gunter