What is the significance of the new Reference Classes?
Apparently John Chambers added Reference Classes to R in version 2.12. There doesn't appear to be much information online yet, but they're calling them R5 classes, which implies they're on a level with S3 and S4 classes. Question: What is a reference class, and how does this fit in with existing class types? Dirk Eddelbuettel The request for documentation for ReferenceClasses comes up every now and then, for example on the r-devel list. The best answer so far is to actually look at what help(ReferenceClasses) gives you---which is a pretty decent start. Then there are a few presentations: John