Changes in Version 0.6-4

 o as.layer() gains arguments x.same and y.same.

Changes in Version 0.6-2

 o new functions 'panel.xblocks', 'panel.qqmath.tails',
   'panel.xyarea' and 'panel.qqmath.xyarea'.

 o added explicit 'layout' argument to 'marginal.plot'
   (was clobbered by the default NULL in 'c.trellis').

 o 'c.trellis' handles 'subscripts' argument to prepanel functions.

Changes in Version 0.6-1

 o fixed 'layout' argument to 'xyplot.list' and 'c.trellis'.

Changes in Version 0.6-0

 o new function xyplot.list, to create and merge multiple plots
   (and not just xyplots).

 o c.trellis will now set same scales properly when x/y.same=TRUE.

 o new function doubleYScale, to easily overlay two plot series.

 o new functions panel.lmlineq and panel.ablineq for line equations.

 o marginal.plot handles non-syntactic variable names;
   also now coerces to data.frame (so e.g. works with a matrix).

 o changes to default axis style in marginal.plot.

 o new dataset EastAuClimate.

Changes in Version 0.5-4

 o marginal.plot now handles table objects sensibly.

 o marginal.plot now applies 'subset' to 'groups', as it should.

Changes in Version 0.5-3

 o improvements to marginal.plot including support for groups.

 o fix to marginal.plot: failed with only numeric variables.

 o fix to panel.voronoi (with use.tripack = FALSE):
   wrong colors were used when xlim/ylim enclosed a data subset.

 o new function 'as.layer' and a method 'as.layer.trellis'.
   This allows panels to be overlaid with independent x/y scales.

Previous Changes

 o several new data sets and a few utility functions

 o dendrogramGrob to produce a dendrogram that can be used as a legend

 o new generic function 'gplot' -- like 'plot', but meant to produce a
   `grouped' Trellis plot.  Methods can be defined for objects that
    already have a 'plot' method.  API Currently unstable.