Release Notes: This release adds the get_data_without_outliers() and the set_outlier_filter() methods. It adds the smoothing functionality. It adds scripts/bump-version-number.pl to facilitate bumping the version number. There are some bugfixes.
Release Notes: Some methods now return undef() if there are no data. Percentile now doesn't die if there are no elements in the collection.
Release Notes: Skewness and kurtosis were added. The log of changes and revisions was removed from the .pm file. Some documentation was added, clarifying the 0th percentile return value, as it returns undef() to represent -inf. A script was added to tag a release using Subversion.
Release Notes: The quantile method was added.
Release Notes: Many code cleanups and refactoring were done. Some test assertions were added.