R-beta: Packages: KernSmooth logspline ppr rpart tree

Prof Brian Ripley ripley at stats.ox.ac.uk
Wed Jun 24 10:07:56 CEST 1998

The following are now on CRAN:

KernSmooth:  version 2.2 of the code for Wand & Jones book on kernel smoothing.
logspline:   spline fits to log denisites, with automatic choice of smoothing.
ppr:         projection pursuit regression.
rpart:       recursive partitioning (CART-like)
VR:          Venables & Ripley libraries 5.3pl021 for 0.62.1

and in the devel section

tree:        a clone of tree, prune.tree, cv.tree ...

which is fully operational but not much documented. Use your V&R2!

You can find out about KernSmooth, logspline, ppr and rpart in the
on-line statistics complements to Venables & Ripley at


The final release of the VR libraries is yet to come: it will follow
the bug-fixes in 0.62.2. If you really want to experiment, the current
version will be at http://www.stats.ox.ac.uk/pub/R, but do use this with
the latest R-release.tar.gz or R-snapshot.tar.gz.

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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