Free GNU statistics software for SPSS data and basic statistical analysis.
GNU PSPP is a statistical analysis program from the Free Software Foundation's GNU Project. Its interface and syntax are somewhat similar to SPSS, and it can be used for common analyses such as descriptive statistics, t-tests, linear regression and non-parametric tests.
Alternative to: SPSS
Use cases: basic statistical analysis, teaching, questionnaire data processing, reading SPSS files