The Rmetrics "fBasics" package is a collection of functions to
explore and to investigate basic properties of financial returns
and related quantities.  The covered fields include techniques of
explorative data analysis and the investigation of distributional
properties, including parameter estimation and hypothesis testing.
Evenmore there are several utility functions for data handling and
management.

WWW: http://cran.r-project.org/web/packages/fBasics/