- PSPP Authors
-
- * Ben Pfaff wrote most of the program and the manual.
+We wish to thank current active contributors to PSPP:
- * John Williams originally wrote the T-TEST procedure, which was
- subsequently re-written by John Darrington.
+* Ben Pfaff wrote the initial program and manual, 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 T-TEST, ONEWAY, and EXAMINE
- procedures, implemented support for long variable names and
- made numerous revisions to other modules.
+* John Darrington wrote the graphical user interface, and the T-TEST,
+ONEWAY, EXAMINE, RANK and NPAR TESTS commands, implemented support for
+long variable names, PostgreSQL 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, which is used by PSPP.
+
+
+We also thank past contributors:
+
+* 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.
+
+* Rob van Son wrote the original version of the routine for
+ calculation of the significance of the Wilcoxon matched pairs signed
+ rank statistic used by the NPAR TEST command.
- * Jason Stover contributed statistical and numerical
- functionality, including lib/gslextras. (Jason is also an
- important contributor to libgsl used by PSPP.)
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