Today's information systems give organizations and governments the ability to collect and access metaphorical mountains of information. But, this information is completely useless unless we are able to find and understand the relationships and trends hidden in these mountains. For projects involving complex research protocols, high-end statistical analysis tools such as SPSS and SAS are useful, but they come with high price tags and proprietary licenses. PSPP is an open-source clone of SPSS, one of the most commonly used proprietary statistical packages.
Major distributions like Fedora and Ubuntu include PSPP in their package repositories, but today they include an outdated version. Upcoming versions of Ubuntu, Fedora, and openSUSE include 0.6.0. Until they are released, if you want to try PSPP, you can compile the current version from source, or look on PSPP's wiki to see if a volunteer has provided a binary for the distribution you're using.
http://www.linuxlinks.com/portal/news/article.php?story=20081016141922257