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. - fixed a bug in knn(use.all = FALSE) - added SOM, batchSOM and ancillary functions. - Bugfix in SOM (7.0-5) - knn* and lvq* explicitly check for missing values in the inputs. - knn1 was not handling ties correctly in some cases (but knn was). - added check for user error in inputs in knn.cv. - SOM segfaulted for 1D inputs.