[R-pkgs] New version (2.2) of the sm package

Adrian Bowman adrian at stats.gla.ac.uk
Thu Sep 27 11:40:39 CEST 2007

The sm package (by Adrian Bowman and Adelchi Azzalini) implements a
variety of nonparametric smoothing techniques, centred on nonparametric
regression for one or two covariates and density estimation for up to
three variables.  A new version of the package is now available on CRAN.

In an earlier unannounced version (2.1), a variety of methods of  
selection were added, with default settings to allow particularly simple
function calls.

In the new version (2.2), interactive control panels are available for
the main functions (sm.regression and sm.density), using the rpanel  
(which itself is based on tcltk).  In addition, the rgl package is used
to provide rotatable three-dimensional plots, where these are  
The details of how these functions operate are available in the help  
(including the help file for sm.options) and in the examples.  However,
the broad principle is that a control panel is activated by adding the
       panel = TRUE
and an rgl plot is created by adding the argument
       display = "rgl"

Adrian Bowman

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