PSPP Contributors

We wish to thank current active contributors to PSPP:

• Ben Pfaff , which comprises the majority of the current code. Ben continues to contribute and most of the core libraries which ensure that PSPP runs with optimal speed are his work.
• John Darrington wrote the graphical user interface, and the T-TEST, ONEWAY, EXAMINE, RANK and NPAR TESTS commands, implemented support for long variable names, psql and gnumeric and made numerous revisions to other modules.
• Jason Stover contributed statistical and numerical functionality, including lib/gslextras and the linear regression features. Jason is also an important contributor to GSL, used by PSPP.

We also thank past contributors:

• Patrick Brunier maintained the PSPP website.
• John Williams wrote an initial draft of the T-TEST procedure.
• Michael Kiefte contributed bug fixes and other enhancements.
• Patrick Kobly contributed bug fixes and other enhancements.