1 We wish to thank current active contributors to PSPP:
3 * Ben Pfaff wrote the initial program and manual, which comprises the
4 majority of the current code. Ben continues to contribute and
5 most of the core libraries which ensure that PSPP runs with optimal
8 * John Darrington wrote the graphical user interface, and the T-TEST,
9 ONEWAY, EXAMINE, RANK and NPAR TESTS commands, implemented support
10 for long variable names, psql and gnumeric and made numerous revisions
13 * Jason Stover contributed statistical and numerical functionality,
14 including lib/gslextras and the linear regression features. Jason
15 is also an important contributor to GSL, which is used by PSPP.
17 We also thank past contributors:
19 * John Williams wrote an initial draft of the T-TEST procedure.
21 * Michael Kiefte contributed bug fixes and other enhancements.
23 * Patrick Kobly contributed bug fixes and other enhancements.