Deepayan Sarkar
Some Notes on Lattice
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Trellis Graphics is implemented in S-PLUS using the traditional S graphics
engine.  In contrast, lattice, the implementation of Trellis Graphics in R,
uses grid as the underlying graphics mechanism. The decision to use grid
has obvious disadvantages, stemming from the fact that pre-existing graphics
code cannot be used unchanged. We shall discuss some of the benefits of
using grid.

Other important differences between trellis and lattice are in the API.
Although the lattice API is largely based on S-PLUS, it also sports several
extensions, as well as some new features. We discuss the motivation for
some of these differences. An elementary knowledge of Trellis Graphics
is assumed.