A few recent changes: - as announced to R-core, the package now has a version of the plot function with formal arguments (x, y, ...) that allow methods to be defined for x and/or y. ?setMethod has some examples. - The "basic classes" have been made somewhat more complete (class "structure" was added, along with relations among it, "matrix", "array", "ts", and "vector"). Closer to the green book and conventional S relations. For 1.4, this doesn't quite go as far as having formal slots for "matrix", etc. Formal slots for these classes should work, but there may be some touchy points in back-compatibility, particularly with the "optional" dimnames slot for arrays, so the plan is to leave that for the next version. - A number of checks for duplicate slots and other problems have been added. Situations were being let through that could cause bad problems later (e.g., slots with different classes in inherited duplicates). An example was added to ?setClass illustrating what's caught by some of the checks. John -- John M. Chambers jmc@bell-labs.com Bell Labs, Lucent Technologies office: (908)582-2681 700 Mountain Avenue, Room 2C-282 fax: (908)582-3340 Murray Hill, NJ 07974 web: http://www.cs.bell-labs.com/~jmc -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-devel-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._