Library Robust offers a wide selection of robust techniques. Updated Libraries Major updates have been made to the Survival Analysis Tools in S-Plus. The class mechanism is completely different from that of earlier versions of S-Plus, and there are many changes to many fundamental functions. The down side of this is that the new S-Plus language architecture is not completely backward compatible with earlier versions of the language. Most examples from earlier books on S and S-Plus should run without modification.
All objects now have a class, including atomic objects such as vectors and matrices.
This extensive support includes new functions for creating classes and methods. This was quite a noticeable difference, as prior versions were quite slow. You must have at least 125MB free disk space for the typical installation. A complete install requires 230MB of free disk space. S-Plus 6.0 using Red Hat Linux 6.0.