[This is more a warning than an announcement]
A new version of lattice should be soon on CRAN. From this version onwards,
all high-level lattice functions are (S3) generic. All of them have formula
methods, some have other methods as well, formalizing the various non-formula
uses which used to be handled by clumsy hacks in the past. There's also a
new
table method for barchart.
Ideally, this change should be completely transparent to the user and no
existing code should break (except undocumented and inappropriate examples
like
dotplot( x | a )
which used to work like dotplot(~x | a) before). However, Murphy's law
usually
prevails, so...
Deepayan
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