Software and datasets to support 'Modern Applied Statistics with S',
fourth edition, by W. N. Venables and B. D. Ripley.
Springer, 2002, ISBN 0-387-95457-0.

This file documents software changes since the third edition.


- Methods for class "surf.ls" contributed by Roger Bivand.
- surf.ls and surf.gls now check for x,y,z cols in a data frame given for x.
- PP datasets moved from data to ppdata
- no longer duplicate topo dataset from MASS
- Strauss and SSI are now interruptible
