This is Version 2.0 of the Trellis Display library.  Version 1.0
of the Trellis display library was released in August, 1994.  Note that
the functions in this version of Trellis are not completely backward
compatible with the Version 1.0 functions.  In particular, you cannot print
trellis objects created under Version 1.0 with the new functions.

The Trellis Display library is a collection of functions and data sets
for creating Trellis displays which have multiple panels arranged in a
regular grid-like structure.  Each panel graphs a subset of the data.
All panels in a Trellis display contain the same type of graph.  Graph
types include histograms, scatter plots, dot plots, contour plots,
wireframe plots and 3-d point clouds.  The data subsets for each panel
are chosen in a regular manner conditioning on continuous or discrete
variables in the data, thus providing a coordinated series of views of
high dimensional data.  The Trellis functions include control over axes
and aspect ratio and contain "banking" computations that let the data
select the aspect ratio.

Starting with the release of S-PLUS 3.3 for Windows in the Fall, 1995,
library trellis will be automatically included in the standard search
list.  There is no need to attach the library explicitly.

There is a collection of example functions in the library that
illustrate its capabilities.  See the trellis.examples help file.