PSPP is a program for statistical analysis of sampled data. It can perform descriptive statistics, T-tests, linear regression, measures of association, cluster analysis, reliability and factor analysis, non-parametric tests and more.
It does not matter what size of the input data you work with - PSPP designed to perform its analyses as fast as possible. PSPP supports for over 1 billion cases and the same amount of variables.
It's easy to work with PSPP - you can import your data from spreadsheets, text files and database sources. While working you have an opportunity to open, analyze and edit two or more datasets concurrently. They can also be merged, joined or concatenated. And after you finish your work you have a variety of output formats: text, postscript, pdf, opendocument or html.
PSPP will be indispensable for statisticians, social scientists and students who need fast and convenient tool for analyzing sampled data.