GNU PSPP vs Stata

GNU PSPP is free desktop software for statistical analysis of sampled data and a free replacement for SPSS. It provides graphical and command-line interfaces, scripting support, statistical tests, and regression models. Analyses include descriptive statistics, t-tests, ANOVA, linear and logistic regression, cluster analysis, reliability and factor analysis, and non-parametric tests. Data can come from PSPP system or portable files, Gnumeric, ODS, PostgreSQL, and TXT or other delimited text. Results can be written as text, PostScript, PDF, OpenDocument, or HTML. PSPP syntax and data files are compatible with SPSS, with a stated aim of producing similar results. The project lists interoperability with Gnumeric, LibreOffice, OpenOffice.org, and other free software. It supports Linux, macOS, and Windows as desktop platforms. The GNU GPL version 3 or later governs the software. Its listed plan is free, with no license fees or artificial limits on cases or variables.

Stata is a locally installed desktop platform for data management, exploration, visualization, statistical analysis, reporting, and reproducible research. Its methods include regression, time-series, panel-data, survival, causal inference, Bayesian analysis, and machine learning. Data import options include Excel, CSV and delimited text, SAS, SPSS, Parquet, dBase, SQL databases via JDBC or ODBC, FRED, and Haver. Stata also supports Python, Jupyter Notebook, Java, and other integrations. Reports can be exported to Word, Excel, PDF, HTML, and Markdown, while graphs can be exported to EPS, PNG, PDF, SVG, or TIFF. It runs on Linux, macOS, and Windows; it is not SaaS. Prof+ annual license prices start at $175 a year and require eligibility as faculty or staff at an accredited, degree-granting university, with proof of affiliation. Instructors can request a free one-week license, and eligible instructors can request a free six-month Stata/BE license for undergraduate classes. The platform states it has no extra modules or hidden costs.