On 4/8/07, Roger Bivand <[EMAIL PROTECTED]> wrote: > On Sun, 8 Apr 2007, Peter Williams wrote: > > > Hi All, > > > > I'm new to R from a C and Octave/Matlab background. I am trying to > > construct some classes in R to which I want to attach pieces of data. > > First, is attr(obj, 'member name') <- data the accepted way of doing > > this? > > No, it isn't. You seem to be trying to deduce new-style classes from a > representation used before R 2.4, but in any case it would not be > sensible. Please consult John M. Chambers. Programming with Data. > Springer, New York, 1998, and/or William N. Venables and Brian D. Ripley. > S Programming. Springer, New York, 2000, or for a shorter online resource: > > http://www.stat.auckland.ac.nz/S-Workshop/Gentleman/Methods.pdf
Unfortunately, all of those references are at least 4 years out of date when it comes to S4 methods. Is there any comprehensive reference of the current implementation of the S4 OO system apart from the source code? Hadley ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
