  The kedd package providing additional smoothing techniques to the R
statistical system. Although various packages on the Comprehensive R Archive
Network (CRAN) provide functions useful to nonparametric statistics, kedd aims
to serve as a central location for more specifically of a nonparametric
functions and data sets. The current feature set of the package can be split in
four main categories: compute the convolutions and derivatives of a kernel
function, compute the kernel estimators for a density of probability and its
derivatives, computing the bandwidth selectors with different methods,
displaying the kernel estimators and selection functions of the bandwidth.
Moreover, the package follows the general R philosophy of working with model
objects. This means that instead of merely returning, say, a kernel estimator
of rth derivative of a density, many functions will return an object
containing, it's functions are S3 classes (S3method). The object can then be
manipulated at one's will using various extraction, summary or plotting
functions. Whenever possible, we develop a graphical user interface of the
various functions of a coherent whole, to facilitate the use of this package.
